mirror of
https://github.com/zeek/zeek.git
synced 2025-10-13 03:58:20 +00:00
Merge branch 'master' into topic/jsiwek/misc
This commit is contained in:
commit
c18d1100ab
27 changed files with 815 additions and 8 deletions
11
CHANGES
11
CHANGES
|
@ -1,4 +1,15 @@
|
|||
|
||||
2.1-1074 | 2013-08-14 10:29:54 -0700
|
||||
|
||||
* Fix timer type enum and timer name array mismatch. (Jon Siwek)
|
||||
|
||||
2.1-1072 | 2013-08-14 10:28:51 -0700
|
||||
|
||||
* Adding the unified2 analyzer that reads unified2 files from disk,
|
||||
turning them into events. (Seth Hall)
|
||||
|
||||
* Fixing intel framework tests. (Seth Hall)
|
||||
|
||||
2.1-1059 | 2013-08-13 23:52:41 -0400
|
||||
|
||||
* Add file name support to intel framework. (Seth Hall)
|
||||
|
|
2
VERSION
2
VERSION
|
@ -1 +1 @@
|
|||
2.1-1059
|
||||
2.1-1074
|
||||
|
|
|
@ -71,6 +71,8 @@ rest_target(${CMAKE_BINARY_DIR}/scripts base/bif/plugins/Bro_TCP.events.bif.bro)
|
|||
rest_target(${CMAKE_BINARY_DIR}/scripts base/bif/plugins/Bro_TCP.functions.bif.bro)
|
||||
rest_target(${CMAKE_BINARY_DIR}/scripts base/bif/plugins/Bro_Teredo.events.bif.bro)
|
||||
rest_target(${CMAKE_BINARY_DIR}/scripts base/bif/plugins/Bro_UDP.events.bif.bro)
|
||||
rest_target(${CMAKE_BINARY_DIR}/scripts base/bif/plugins/Bro_Unified2.events.bif.bro)
|
||||
rest_target(${CMAKE_BINARY_DIR}/scripts base/bif/plugins/Bro_Unified2.types.bif.bro)
|
||||
rest_target(${CMAKE_BINARY_DIR}/scripts base/bif/plugins/Bro_ZIP.events.bif.bro)
|
||||
rest_target(${CMAKE_BINARY_DIR}/scripts base/bif/reporter.bif.bro)
|
||||
rest_target(${CMAKE_BINARY_DIR}/scripts base/bif/strings.bif.bro)
|
||||
|
@ -78,6 +80,7 @@ rest_target(${CMAKE_BINARY_DIR}/scripts base/bif/top-k.bif.bro)
|
|||
rest_target(${CMAKE_BINARY_DIR}/scripts base/bif/types.bif.bro)
|
||||
rest_target(${psd} base/files/extract/main.bro)
|
||||
rest_target(${psd} base/files/hash/main.bro)
|
||||
rest_target(${psd} base/files/unified2/main.bro)
|
||||
rest_target(${psd} base/frameworks/analyzer/main.bro)
|
||||
rest_target(${psd} base/frameworks/cluster/main.bro)
|
||||
rest_target(${psd} base/frameworks/cluster/nodes/manager.bro)
|
||||
|
|
1
scripts/base/files/unified2/__load__.bro
Normal file
1
scripts/base/files/unified2/__load__.bro
Normal file
|
@ -0,0 +1 @@
|
|||
@load ./main
|
244
scripts/base/files/unified2/main.bro
Normal file
244
scripts/base/files/unified2/main.bro
Normal file
|
@ -0,0 +1,244 @@
|
|||
|
||||
@load base/utils/dir
|
||||
@load base/utils/paths
|
||||
|
||||
module Unified2;
|
||||
|
||||
export {
|
||||
redef enum Log::ID += { LOG };
|
||||
|
||||
## Directory to watch for Unified2 files.
|
||||
const watch_file = "" &redef;
|
||||
|
||||
## File to watch for Unified2 records.
|
||||
const watch_dir = "" &redef;
|
||||
|
||||
## The sid-msg.map file you would like to use for your alerts.
|
||||
const sid_msg = "" &redef;
|
||||
|
||||
## The gen-msg.map file you would like to use for your alerts.
|
||||
const gen_msg = "" &redef;
|
||||
|
||||
## The classification.config file you would like to use for your alerts.
|
||||
const classification_config = "" &redef;
|
||||
|
||||
## Reconstructed "alert" which combines related events
|
||||
## and packets.
|
||||
global alert: event(f: fa_file, ev: Unified2::IDSEvent, pkt: Unified2::Packet);
|
||||
|
||||
type PacketID: record {
|
||||
src_ip: addr;
|
||||
src_p: port;
|
||||
dst_ip: addr;
|
||||
dst_p: port;
|
||||
} &log;
|
||||
|
||||
type Info: record {
|
||||
## Timestamp attached to the alert.
|
||||
ts: time &log;
|
||||
## Addresses and ports for the connection.
|
||||
id: PacketID &log;
|
||||
## Sensor that originated this event.
|
||||
sensor_id: count &log;
|
||||
## Sig id for this generator.
|
||||
signature_id: count &log;
|
||||
## A string representation of the "signature_id" field if a sid_msg.map file was loaded.
|
||||
signature: string &log &optional;
|
||||
## Which generator generated the alert?
|
||||
generator_id: count &log;
|
||||
## A string representation of the "generator_id" field if a gen_msg.map file was loaded.
|
||||
generator: string &log &optional;
|
||||
## Sig revision for this id.
|
||||
signature_revision: count &log;
|
||||
## Event classification.
|
||||
classification_id: count &log;
|
||||
## Descriptive classification string,
|
||||
classification: string &log &optional;
|
||||
## Event priority.
|
||||
priority_id: count &log;
|
||||
## Event ID.
|
||||
event_id: count &log;
|
||||
## Some of the packet data.
|
||||
packet: string &log &optional;
|
||||
} &log;
|
||||
|
||||
## The event for accessing logged records.
|
||||
global log_unified2: event(rec: Info);
|
||||
}
|
||||
|
||||
# Mappings for extended information from alerts.
|
||||
global classification_map: table[count] of string;
|
||||
global sid_map: table[count] of string;
|
||||
global gen_map: table[count] of string;
|
||||
|
||||
# For reading in config files.
|
||||
type OneLine: record {
|
||||
line: string;
|
||||
};
|
||||
|
||||
function create_info(ev: IDSEvent): Info
|
||||
{
|
||||
local info = Info($ts=ev$ts,
|
||||
$id=PacketID($src_ip=ev$src_ip, $src_p=ev$src_p,
|
||||
$dst_ip=ev$dst_ip, $dst_p=ev$dst_p),
|
||||
$sensor_id=ev$sensor_id,
|
||||
$signature_id=ev$signature_id,
|
||||
$generator_id=ev$generator_id,
|
||||
$signature_revision=ev$signature_revision,
|
||||
$classification_id=ev$classification_id,
|
||||
$priority_id=ev$priority_id,
|
||||
$event_id=ev$event_id);
|
||||
|
||||
if ( ev$signature_id in sid_map )
|
||||
info$signature=sid_map[ev$signature_id];
|
||||
if ( ev$generator_id in gen_map )
|
||||
info$generator=gen_map[ev$generator_id];
|
||||
if ( ev$classification_id in classification_map )
|
||||
info$classification=classification_map[ev$classification_id];
|
||||
|
||||
return info;
|
||||
}
|
||||
|
||||
redef record fa_file += {
|
||||
## Recently received IDS events. This is primarily used
|
||||
## for tying together Unified2 events and packets.
|
||||
u2_events: table[count] of Unified2::IDSEvent
|
||||
&optional &create_expire=5sec
|
||||
&expire_func=function(t: table[count] of Unified2::IDSEvent, event_id: count): interval
|
||||
{
|
||||
Log::write(LOG, create_info(t[event_id]));
|
||||
return 0secs;
|
||||
};
|
||||
};
|
||||
|
||||
event Unified2::read_sid_msg_line(desc: Input::EventDescription, tpe: Input::Event, line: string)
|
||||
{
|
||||
local parts = split_n(line, / \|\| /, F, 100);
|
||||
if ( |parts| >= 2 && /^[0-9]+$/ in parts[1] )
|
||||
sid_map[to_count(parts[1])] = parts[2];
|
||||
}
|
||||
|
||||
event Unified2::read_gen_msg_line(desc: Input::EventDescription, tpe: Input::Event, line: string)
|
||||
{
|
||||
local parts = split_n(line, / \|\| /, F, 3);
|
||||
if ( |parts| >= 2 && /^[0-9]+$/ in parts[1] )
|
||||
gen_map[to_count(parts[1])] = parts[3];
|
||||
}
|
||||
|
||||
event Unified2::read_classification_line(desc: Input::EventDescription, tpe: Input::Event, line: string)
|
||||
{
|
||||
local parts = split_n(line, /: /, F, 2);
|
||||
if ( |parts| == 2 )
|
||||
{
|
||||
local parts2 = split_n(parts[2], /,/, F, 4);
|
||||
if ( |parts2| > 1 )
|
||||
classification_map[|classification_map|+1] = parts2[1];
|
||||
}
|
||||
}
|
||||
|
||||
event bro_init() &priority=5
|
||||
{
|
||||
Log::create_stream(Unified2::LOG, [$columns=Info, $ev=log_unified2]);
|
||||
|
||||
if ( sid_msg != "" )
|
||||
{
|
||||
Input::add_event([$source=sid_msg,
|
||||
$reader=Input::READER_RAW,
|
||||
$mode=Input::REREAD,
|
||||
$name=sid_msg,
|
||||
$fields=Unified2::OneLine,
|
||||
$want_record=F,
|
||||
$ev=Unified2::read_sid_msg_line]);
|
||||
}
|
||||
|
||||
if ( gen_msg != "" )
|
||||
{
|
||||
Input::add_event([$source=gen_msg,
|
||||
$name=gen_msg,
|
||||
$reader=Input::READER_RAW,
|
||||
$mode=Input::REREAD,
|
||||
$fields=Unified2::OneLine,
|
||||
$want_record=F,
|
||||
$ev=Unified2::read_gen_msg_line]);
|
||||
}
|
||||
|
||||
if ( classification_config != "" )
|
||||
{
|
||||
Input::add_event([$source=classification_config,
|
||||
$name=classification_config,
|
||||
$reader=Input::READER_RAW,
|
||||
$mode=Input::REREAD,
|
||||
$fields=Unified2::OneLine,
|
||||
$want_record=F,
|
||||
$ev=Unified2::read_classification_line]);
|
||||
}
|
||||
|
||||
if ( watch_dir != "" )
|
||||
{
|
||||
Dir::monitor(watch_dir, function(fname: string)
|
||||
{
|
||||
Input::add_analysis([$source=fname,
|
||||
$reader=Input::READER_BINARY,
|
||||
$mode=Input::STREAM,
|
||||
$name=fname]);
|
||||
}, 10secs);
|
||||
}
|
||||
|
||||
if ( watch_file != "" )
|
||||
{
|
||||
Input::add_analysis([$source=watch_file,
|
||||
$reader=Input::READER_BINARY,
|
||||
$mode=Input::STREAM,
|
||||
$name=watch_file]);
|
||||
}
|
||||
}
|
||||
|
||||
event file_new(f: fa_file)
|
||||
{
|
||||
local file_dir = "";
|
||||
local parts = split_all(f$source, /\/[^\/]*$/);
|
||||
if ( |parts| == 3 )
|
||||
file_dir = parts[1];
|
||||
|
||||
if ( (watch_file != "" && f$source == watch_file) ||
|
||||
(watch_dir != "" && compress_path(watch_dir) == file_dir) )
|
||||
{
|
||||
Files::add_analyzer(f, Files::ANALYZER_UNIFIED2);
|
||||
f$u2_events = table();
|
||||
}
|
||||
}
|
||||
|
||||
event unified2_event(f: fa_file, ev: Unified2::IDSEvent)
|
||||
{
|
||||
f$u2_events[ev$event_id] = ev;
|
||||
}
|
||||
|
||||
event unified2_packet(f: fa_file, pkt: Unified2::Packet)
|
||||
{
|
||||
if ( f?$u2_events && pkt$event_id in f$u2_events)
|
||||
{
|
||||
local ev = f$u2_events[pkt$event_id];
|
||||
event Unified2::alert(f, ev, pkt);
|
||||
delete f$u2_events[pkt$event_id];
|
||||
}
|
||||
}
|
||||
|
||||
event Unified2::alert(f: fa_file, ev: IDSEvent, pkt: Packet)
|
||||
{
|
||||
local info = create_info(ev);
|
||||
info$packet=pkt$data;
|
||||
Log::write(LOG, info);
|
||||
}
|
||||
|
||||
event file_state_remove(f: fa_file)
|
||||
{
|
||||
if ( f?$u2_events )
|
||||
{
|
||||
# In case any events never had matching packets, flush
|
||||
# the extras to the log.
|
||||
for ( i in f$u2_events )
|
||||
{
|
||||
Log::write(LOG, create_info(f$u2_events[i]));
|
||||
}
|
||||
}
|
||||
}
|
|
@ -2686,6 +2686,42 @@ type ModbusHeaders: record {
|
|||
function_code: count;
|
||||
};
|
||||
|
||||
module Unified2;
|
||||
export {
|
||||
type Unified2::IDSEvent: record {
|
||||
sensor_id: count;
|
||||
event_id: count;
|
||||
ts: time;
|
||||
signature_id: count;
|
||||
generator_id: count;
|
||||
signature_revision: count;
|
||||
classification_id: count;
|
||||
priority_id: count;
|
||||
src_ip: addr;
|
||||
dst_ip: addr;
|
||||
src_p: port;
|
||||
dst_p: port;
|
||||
impact_flag: count;
|
||||
impact: count;
|
||||
blocked: count;
|
||||
## Not available in "legacy" IDS events.
|
||||
mpls_label: count &optional;
|
||||
## Not available in "legacy" IDS events.
|
||||
vlan_id: count &optional;
|
||||
## Only available in "legacy" IDS events.
|
||||
packet_action: count &optional;
|
||||
};
|
||||
|
||||
type Unified2::Packet: record {
|
||||
sensor_id: count;
|
||||
event_id: count;
|
||||
event_second: count;
|
||||
packet_ts: time;
|
||||
link_type: count;
|
||||
data: string;
|
||||
};
|
||||
}
|
||||
|
||||
module SOCKS;
|
||||
export {
|
||||
## This record is for a SOCKS client or server to provide either a
|
||||
|
|
|
@ -56,5 +56,7 @@
|
|||
|
||||
@load base/files/hash
|
||||
@load base/files/extract
|
||||
@load base/files/unified2
|
||||
|
||||
|
||||
@load base/misc/find-checksum-offloading
|
||||
|
|
|
@ -16,6 +16,7 @@ const char* TimerNames[] = {
|
|||
"ConnectionInactivityTimer",
|
||||
"ConnectionStatusUpdateTimer",
|
||||
"DNSExpireTimer",
|
||||
"FileAnalysisInactivityTimer",
|
||||
"FragTimer",
|
||||
"IncrementalSendTimer",
|
||||
"IncrementalWriteTimer",
|
||||
|
|
|
@ -23,7 +23,6 @@ enum TimerType {
|
|||
TIMER_CONN_STATUS_UPDATE,
|
||||
TIMER_DNS_EXPIRE,
|
||||
TIMER_FILE_ANALYSIS_INACTIVITY,
|
||||
TIMER_FILE_ANALYSIS_DRAIN,
|
||||
TIMER_FRAG,
|
||||
TIMER_INCREMENTAL_SEND,
|
||||
TIMER_INCREMENTAL_WRITE,
|
||||
|
|
|
@ -12,6 +12,7 @@ namespace analyzer { class Analyzer; }
|
|||
#include "event.bif.func_h"
|
||||
#include "TunnelEncapsulation.h"
|
||||
#include "analyzer/Analyzer.h"
|
||||
#include "file_analysis/Analyzer.h"
|
||||
#include "Conn.h"
|
||||
|
||||
#include "binpac.h"
|
||||
|
@ -19,6 +20,7 @@ namespace analyzer { class Analyzer; }
|
|||
namespace binpac {
|
||||
|
||||
typedef analyzer::Analyzer* BroAnalyzer;
|
||||
typedef file_analysis::Analyzer BroFileAnalyzer;
|
||||
typedef Val* BroVal;
|
||||
typedef PortVal* BroPortVal;
|
||||
typedef StringVal* BroStringVal;
|
||||
|
|
|
@ -1,3 +1,4 @@
|
|||
add_subdirectory(data_event)
|
||||
add_subdirectory(extract)
|
||||
add_subdirectory(hash)
|
||||
add_subdirectory(unified2)
|
||||
|
|
11
src/file_analysis/analyzer/unified2/CMakeLists.txt
Normal file
11
src/file_analysis/analyzer/unified2/CMakeLists.txt
Normal file
|
@ -0,0 +1,11 @@
|
|||
|
||||
include(BroPlugin)
|
||||
|
||||
include_directories(BEFORE ${CMAKE_CURRENT_SOURCE_DIR}
|
||||
${CMAKE_CURRENT_BINARY_DIR})
|
||||
|
||||
bro_plugin_begin(Bro Unified2)
|
||||
bro_plugin_cc(Unified2.cc Plugin.cc ../../Analyzer.cc)
|
||||
bro_plugin_bif(events.bif types.bif)
|
||||
bro_plugin_pac(unified2.pac unified2-file.pac unified2-analyzer.pac)
|
||||
bro_plugin_end()
|
35
src/file_analysis/analyzer/unified2/Plugin.cc
Normal file
35
src/file_analysis/analyzer/unified2/Plugin.cc
Normal file
|
@ -0,0 +1,35 @@
|
|||
// See the file "COPYING" in the main distribution directory for copyright.
|
||||
|
||||
#include "plugin/Plugin.h"
|
||||
|
||||
#include "file_analysis/Component.h"
|
||||
|
||||
#include "Unified2.h"
|
||||
|
||||
namespace plugin { namespace Bro_Unified2 {
|
||||
|
||||
class Plugin : public plugin::Plugin {
|
||||
protected:
|
||||
void InitPreScript()
|
||||
{
|
||||
SetName("Bro::Unified2");
|
||||
SetVersion(-1);
|
||||
SetAPIVersion(BRO_PLUGIN_API_VERSION);
|
||||
SetDynamicPlugin(false);
|
||||
|
||||
SetDescription("Analyze Unified2 alert files.");
|
||||
|
||||
AddComponent(new ::file_analysis::Component("UNIFIED2",
|
||||
::file_analysis::Unified2::Instantiate));
|
||||
|
||||
extern std::list<std::pair<const char*, int> > __bif_events_init();
|
||||
AddBifInitFunction(&__bif_events_init);
|
||||
|
||||
extern std::list<std::pair<const char*, int> > __bif_types_init();
|
||||
AddBifInitFunction(&__bif_types_init);
|
||||
}
|
||||
};
|
||||
|
||||
Plugin __plugin;
|
||||
|
||||
} }
|
38
src/file_analysis/analyzer/unified2/Unified2.cc
Normal file
38
src/file_analysis/analyzer/unified2/Unified2.cc
Normal file
|
@ -0,0 +1,38 @@
|
|||
// See the file "COPYING" in the main distribution directory for copyright.
|
||||
|
||||
#include "Unified2.h"
|
||||
#include "file_analysis/Manager.h"
|
||||
|
||||
using namespace file_analysis;
|
||||
|
||||
Unified2::Unified2(RecordVal* args, File* file)
|
||||
: file_analysis::Analyzer(file_mgr->GetComponentTag("UNIFIED2"), args, file)
|
||||
{
|
||||
interp = new binpac::Unified2::Unified2_Analyzer(this);
|
||||
}
|
||||
|
||||
Unified2::~Unified2()
|
||||
{
|
||||
delete interp;
|
||||
}
|
||||
|
||||
file_analysis::Analyzer* Unified2::Instantiate(RecordVal* args, File* file)
|
||||
{
|
||||
return new Unified2(args, file);
|
||||
}
|
||||
|
||||
bool Unified2::DeliverStream(const u_char* data, uint64 len)
|
||||
{
|
||||
try
|
||||
{
|
||||
interp->NewData(true, data, data + len);
|
||||
}
|
||||
|
||||
catch ( const binpac::Exception& e )
|
||||
{
|
||||
printf("Binpac exception: %s\n", e.c_msg());
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
38
src/file_analysis/analyzer/unified2/Unified2.h
Normal file
38
src/file_analysis/analyzer/unified2/Unified2.h
Normal file
|
@ -0,0 +1,38 @@
|
|||
// See the file "COPYING" in the main distribution directory for copyright.
|
||||
|
||||
#ifndef FILE_ANALYSIS_UNIFIED2_H
|
||||
#define FILE_ANALYSIS_UNIFIED2_H
|
||||
|
||||
#include <string>
|
||||
|
||||
#include "Val.h"
|
||||
#include "File.h"
|
||||
#include "Analyzer.h"
|
||||
#include "unified2_pac.h"
|
||||
|
||||
namespace file_analysis {
|
||||
|
||||
/**
|
||||
* An analyzer to extract content of files from local disk.
|
||||
*/
|
||||
class Unified2 : public file_analysis::Analyzer {
|
||||
public:
|
||||
virtual ~Unified2();
|
||||
|
||||
virtual bool DeliverStream(const u_char* data, uint64 len);
|
||||
|
||||
static file_analysis::Analyzer* Instantiate(RecordVal* args, File* file);
|
||||
|
||||
protected:
|
||||
Unified2(RecordVal* args, File* file);
|
||||
|
||||
private:
|
||||
binpac::Unified2::Unified2_Analyzer* interp;
|
||||
|
||||
string filename;
|
||||
int fd;
|
||||
};
|
||||
|
||||
} // namespace file_analysis
|
||||
|
||||
#endif
|
7
src/file_analysis/analyzer/unified2/events.bif
Normal file
7
src/file_analysis/analyzer/unified2/events.bif
Normal file
|
@ -0,0 +1,7 @@
|
|||
|
||||
## Abstract all of the various Unified2 event formats into
|
||||
## a single event.
|
||||
event unified2_event%(f: fa_file, ev: Unified2::IDSEvent%);
|
||||
|
||||
## The Unified2 packet format event.
|
||||
event unified2_packet%(f: fa_file, pkt: Unified2::Packet%);
|
2
src/file_analysis/analyzer/unified2/types.bif
Normal file
2
src/file_analysis/analyzer/unified2/types.bif
Normal file
|
@ -0,0 +1,2 @@
|
|||
type Unified2::IDSEvent: record;
|
||||
type Unified2::Packet: record;
|
170
src/file_analysis/analyzer/unified2/unified2-analyzer.pac
Normal file
170
src/file_analysis/analyzer/unified2/unified2-analyzer.pac
Normal file
|
@ -0,0 +1,170 @@
|
|||
|
||||
%extern{
|
||||
#include "Event.h"
|
||||
#include "file_analysis/File.h"
|
||||
#include "events.bif.h"
|
||||
#include "types.bif.h"
|
||||
#include "IPAddr.h"
|
||||
%}
|
||||
|
||||
refine flow Flow += {
|
||||
|
||||
%member{
|
||||
%}
|
||||
|
||||
%init{
|
||||
%}
|
||||
|
||||
%eof{
|
||||
%}
|
||||
|
||||
%cleanup{
|
||||
%}
|
||||
|
||||
function ts_to_double(ts: Time): double
|
||||
%{
|
||||
double t = ${ts.seconds} + (${ts.microseconds} / 1000000);
|
||||
return t;
|
||||
%}
|
||||
|
||||
function unified2_addr_to_bro_addr(a: uint32[]): AddrVal
|
||||
%{
|
||||
if ( a->size() == 1 )
|
||||
{
|
||||
return new AddrVal(IPAddr(IPv4, &(a->at(0)), IPAddr::Host));
|
||||
}
|
||||
else if ( a->size() == 4 )
|
||||
{
|
||||
uint32 tmp[4] = { a->at(0), a->at(1), a->at(2), a->at(3) };
|
||||
return new AddrVal(IPAddr(IPv6, tmp, IPAddr::Host));
|
||||
}
|
||||
else
|
||||
{
|
||||
// Should never reach here.
|
||||
return new AddrVal(1);
|
||||
}
|
||||
%}
|
||||
|
||||
function to_port(n: uint16, p: uint8): PortVal
|
||||
%{
|
||||
TransportProto proto = TRANSPORT_UNKNOWN;
|
||||
switch ( p ) {
|
||||
case 1: proto = TRANSPORT_ICMP; break;
|
||||
case 6: proto = TRANSPORT_TCP; break;
|
||||
case 17: proto = TRANSPORT_UDP; break;
|
||||
}
|
||||
|
||||
return new PortVal(n, proto);
|
||||
%}
|
||||
|
||||
#function proc_record(rec: Record) : bool
|
||||
# %{
|
||||
# return true;
|
||||
# %}
|
||||
|
||||
function proc_ids_event(ev: IDS_Event) : bool
|
||||
%{
|
||||
if ( ::unified2_event )
|
||||
{
|
||||
RecordVal* ids_event = new RecordVal(BifType::Record::Unified2::IDSEvent);
|
||||
ids_event->Assign(0, new Val(${ev.sensor_id}, TYPE_COUNT));
|
||||
ids_event->Assign(1, new Val(${ev.event_id}, TYPE_COUNT));
|
||||
ids_event->Assign(2, new Val(ts_to_double(${ev.ts}), TYPE_TIME));
|
||||
ids_event->Assign(3, new Val(${ev.signature_id}, TYPE_COUNT));
|
||||
ids_event->Assign(4, new Val(${ev.generator_id}, TYPE_COUNT));
|
||||
ids_event->Assign(5, new Val(${ev.signature_revision}, TYPE_COUNT));
|
||||
ids_event->Assign(6, new Val(${ev.classification_id}, TYPE_COUNT));
|
||||
ids_event->Assign(7, new Val(${ev.priority_id}, TYPE_COUNT));
|
||||
ids_event->Assign(8, unified2_addr_to_bro_addr(${ev.src_ip}));
|
||||
ids_event->Assign(9, unified2_addr_to_bro_addr(${ev.dst_ip}));
|
||||
ids_event->Assign(10, to_port(${ev.src_p}, ${ev.protocol}));
|
||||
ids_event->Assign(11, to_port(${ev.dst_p}, ${ev.protocol}));
|
||||
ids_event->Assign(17, new Val(${ev.packet_action}, TYPE_COUNT));
|
||||
|
||||
val_list* vl = new val_list();
|
||||
vl->append(connection()->bro_analyzer()->GetFile()->GetVal()->Ref());
|
||||
vl->append(ids_event);
|
||||
mgr.QueueEvent(::unified2_event, vl, SOURCE_LOCAL);
|
||||
}
|
||||
return true;
|
||||
%}
|
||||
|
||||
function proc_ids_event_2(ev: IDS_Event_2) : bool
|
||||
%{
|
||||
if ( ::unified2_event )
|
||||
{
|
||||
RecordVal* ids_event = new RecordVal(BifType::Record::Unified2::IDSEvent);
|
||||
ids_event->Assign(0, new Val(${ev.sensor_id}, TYPE_COUNT));
|
||||
ids_event->Assign(1, new Val(${ev.event_id}, TYPE_COUNT));
|
||||
ids_event->Assign(2, new Val(ts_to_double(${ev.ts}), TYPE_TIME));
|
||||
ids_event->Assign(3, new Val(${ev.signature_id}, TYPE_COUNT));
|
||||
ids_event->Assign(4, new Val(${ev.generator_id}, TYPE_COUNT));
|
||||
ids_event->Assign(5, new Val(${ev.signature_revision}, TYPE_COUNT));
|
||||
ids_event->Assign(6, new Val(${ev.classification_id}, TYPE_COUNT));
|
||||
ids_event->Assign(7, new Val(${ev.priority_id}, TYPE_COUNT));
|
||||
ids_event->Assign(8, unified2_addr_to_bro_addr(${ev.src_ip}));
|
||||
ids_event->Assign(9, unified2_addr_to_bro_addr(${ev.dst_ip}));
|
||||
ids_event->Assign(10, to_port(${ev.src_p}, ${ev.protocol}));
|
||||
ids_event->Assign(11, to_port(${ev.dst_p}, ${ev.protocol}));
|
||||
ids_event->Assign(12, new Val(${ev.impact_flag}, TYPE_COUNT));
|
||||
ids_event->Assign(13, new Val(${ev.impact}, TYPE_COUNT));
|
||||
ids_event->Assign(14, new Val(${ev.blocked}, TYPE_COUNT));
|
||||
ids_event->Assign(15, new Val(${ev.mpls_label}, TYPE_COUNT));
|
||||
ids_event->Assign(16, new Val(${ev.vlan_id}, TYPE_COUNT));
|
||||
|
||||
val_list* vl = new val_list();
|
||||
vl->append(connection()->bro_analyzer()->GetFile()->GetVal()->Ref());
|
||||
vl->append(ids_event);
|
||||
mgr.QueueEvent(::unified2_event, vl, SOURCE_LOCAL);
|
||||
}
|
||||
|
||||
return true;
|
||||
%}
|
||||
|
||||
function proc_packet(pkt: Packet) : bool
|
||||
%{
|
||||
if ( ::unified2_packet )
|
||||
{
|
||||
RecordVal* packet = new RecordVal(BifType::Record::Unified2::Packet);
|
||||
packet->Assign(0, new Val(${pkt.sensor_id}, TYPE_COUNT));
|
||||
packet->Assign(1, new Val(${pkt.event_id}, TYPE_COUNT));
|
||||
packet->Assign(2, new Val(${pkt.event_second}, TYPE_COUNT));
|
||||
packet->Assign(3, new Val(ts_to_double(${pkt.packet_ts}), TYPE_TIME));
|
||||
packet->Assign(4, new Val(${pkt.link_type}, TYPE_COUNT));
|
||||
packet->Assign(5, bytestring_to_val(${pkt.packet_data}));
|
||||
|
||||
val_list* vl = new val_list();
|
||||
vl->append(connection()->bro_analyzer()->GetFile()->GetVal()->Ref());
|
||||
vl->append(packet);
|
||||
mgr.QueueEvent(::unified2_packet, vl, SOURCE_LOCAL);
|
||||
}
|
||||
|
||||
return true;
|
||||
%}
|
||||
|
||||
#function proc_unknown_record_type(rec: UnknownRecordType) : bool
|
||||
# %{
|
||||
# printf("unknown packet type\n");
|
||||
# return true;
|
||||
# %}
|
||||
};
|
||||
|
||||
#refine typeattr Record += &let {
|
||||
# proc : bool = $context.flow.proc_record(this);
|
||||
#};
|
||||
|
||||
refine typeattr IDS_Event += &let {
|
||||
proc : bool = $context.flow.proc_ids_event(this);
|
||||
};
|
||||
|
||||
refine typeattr IDS_Event_2 += &let {
|
||||
proc : bool = $context.flow.proc_ids_event_2(this);
|
||||
};
|
||||
|
||||
refine typeattr Packet += &let {
|
||||
proc : bool = $context.flow.proc_packet(this);
|
||||
};
|
||||
|
||||
#refine typeattr UnknownRecordType += &let {
|
||||
# proc : bool = $context.flow.proc_unknown_record_type(this);
|
||||
#};
|
91
src/file_analysis/analyzer/unified2/unified2-file.pac
Normal file
91
src/file_analysis/analyzer/unified2/unified2-file.pac
Normal file
|
@ -0,0 +1,91 @@
|
|||
|
||||
enum Types {
|
||||
PACKET = 2,
|
||||
IDS_EVENT = 7,
|
||||
IDS_EVENT_IPV6 = 72,
|
||||
IDS_EVENT_2 = 104,
|
||||
IDS_EVENT_IPV6_2 = 105,
|
||||
EXTRA_DATA = 110,
|
||||
};
|
||||
|
||||
type Time = record {
|
||||
seconds: uint32;
|
||||
microseconds: uint32;
|
||||
} &byteorder=bigendian;
|
||||
|
||||
type Record = record {
|
||||
rtype: uint32;
|
||||
length: uint32;
|
||||
data: case rtype of {
|
||||
PACKET -> packet: Packet(this);
|
||||
IDS_EVENT -> ids_event: IDS_Event(this, 1);
|
||||
IDS_EVENT_IPV6 -> ids_event_ipv6: IDS_Event(this, 4);
|
||||
IDS_EVENT_2 -> ids_event_vlan: IDS_Event_2(this, 1);
|
||||
IDS_EVENT_IPV6_2 -> ids_event_ipv6_vlan: IDS_Event_2(this, 4);
|
||||
#EXTRA_DATA -> extra_data: ExtraData(this);
|
||||
default -> unknown_record_type: UnknownRecordType(this);
|
||||
};
|
||||
} &byteorder=bigendian &length=length+8;
|
||||
|
||||
type IDS_Event(rec: Record, ip_len: int) = record {
|
||||
sensor_id: uint32;
|
||||
event_id: uint32;
|
||||
ts: Time;
|
||||
signature_id: uint32;
|
||||
generator_id: uint32;
|
||||
signature_revision: uint32;
|
||||
classification_id: uint32;
|
||||
priority_id: uint32;
|
||||
src_ip: uint32[ip_len];
|
||||
dst_ip: uint32[ip_len];
|
||||
src_p: uint16;
|
||||
dst_p: uint16;
|
||||
protocol: uint8;
|
||||
packet_action: uint8;
|
||||
} &byteorder=bigendian;
|
||||
|
||||
type IDS_Event_2(rec: Record, ip_len: int) = record {
|
||||
sensor_id: uint32;
|
||||
event_id: uint32;
|
||||
ts: Time;
|
||||
signature_id: uint32;
|
||||
generator_id: uint32;
|
||||
signature_revision: uint32;
|
||||
classification_id: uint32;
|
||||
priority_id: uint32;
|
||||
src_ip: uint32[ip_len];
|
||||
dst_ip: uint32[ip_len];
|
||||
src_p: uint16;
|
||||
dst_p: uint16;
|
||||
protocol: uint8;
|
||||
impact_flag: uint8;
|
||||
impact: uint8;
|
||||
blocked: uint8;
|
||||
mpls_label: uint32;
|
||||
vlan_id: uint16;
|
||||
pad: uint16;
|
||||
} &byteorder=bigendian;
|
||||
|
||||
type Packet(rec: Record) = record {
|
||||
sensor_id: uint32;
|
||||
event_id: uint32;
|
||||
event_second: uint32;
|
||||
packet_ts: Time;
|
||||
link_type: uint32;
|
||||
packet_len: uint32;
|
||||
packet_data: bytestring &length=packet_len;
|
||||
} &byteorder=bigendian;
|
||||
|
||||
type ExtraData(rec: Record) = record {
|
||||
sensor_id: uint32;
|
||||
event_id: uint32;
|
||||
event_second: uint32;
|
||||
extra_type: uint32;
|
||||
data_type: uint32;
|
||||
blob_len: uint32;
|
||||
blob: bytestring &length=blob_len;
|
||||
} &byteorder=bigendian &length=rec.length;
|
||||
|
||||
type UnknownRecordType(rec: Record) = record {
|
||||
data: bytestring &transient &length=rec.length;
|
||||
} &byteorder=bigendian &length=rec.length;
|
21
src/file_analysis/analyzer/unified2/unified2.pac
Normal file
21
src/file_analysis/analyzer/unified2/unified2.pac
Normal file
|
@ -0,0 +1,21 @@
|
|||
|
||||
%include binpac.pac
|
||||
%include bro.pac
|
||||
|
||||
analyzer Unified2 withcontext {
|
||||
analyzer: Unified2_Analyzer;
|
||||
flow: Flow;
|
||||
};
|
||||
|
||||
analyzer Unified2_Analyzer(bro_analyzer: BroFileAnalyzer) {
|
||||
downflow = Flow;
|
||||
upflow = Flow;
|
||||
};
|
||||
|
||||
%include unified2-file.pac
|
||||
|
||||
flow Flow {
|
||||
flowunit = Record withcontext(connection, this);
|
||||
};
|
||||
|
||||
%include unified2-analyzer.pac
|
|
@ -3,7 +3,7 @@
|
|||
#empty_field (empty)
|
||||
#unset_field -
|
||||
#path loaded_scripts
|
||||
#open 2013-08-12-18-22-48
|
||||
#open 2013-08-14-01-19-27
|
||||
#fields name
|
||||
#types string
|
||||
scripts/base/init-bare.bro
|
||||
|
@ -62,6 +62,8 @@ scripts/base/init-bare.bro
|
|||
build/scripts/base/bif/plugins/Bro_TCP.functions.bif.bro
|
||||
build/scripts/base/bif/plugins/Bro_Teredo.events.bif.bro
|
||||
build/scripts/base/bif/plugins/Bro_UDP.events.bif.bro
|
||||
build/scripts/base/bif/plugins/Bro_Unified2.events.bif.bro
|
||||
build/scripts/base/bif/plugins/Bro_Unified2.types.bif.bro
|
||||
build/scripts/base/bif/plugins/Bro_ZIP.events.bif.bro
|
||||
scripts/base/frameworks/logging/__load__.bro
|
||||
scripts/base/frameworks/logging/main.bro
|
||||
|
@ -95,4 +97,4 @@ scripts/base/init-bare.bro
|
|||
build/scripts/base/bif/top-k.bif.bro
|
||||
scripts/policy/misc/loaded-scripts.bro
|
||||
scripts/base/utils/paths.bro
|
||||
#close 2013-08-12-18-22-48
|
||||
#close 2013-08-14-01-19-27
|
||||
|
|
|
@ -3,7 +3,7 @@
|
|||
#empty_field (empty)
|
||||
#unset_field -
|
||||
#path loaded_scripts
|
||||
#open 2013-08-12-18-22-49
|
||||
#open 2013-08-14-01-19-28
|
||||
#fields name
|
||||
#types string
|
||||
scripts/base/init-bare.bro
|
||||
|
@ -62,6 +62,8 @@ scripts/base/init-bare.bro
|
|||
build/scripts/base/bif/plugins/Bro_TCP.functions.bif.bro
|
||||
build/scripts/base/bif/plugins/Bro_Teredo.events.bif.bro
|
||||
build/scripts/base/bif/plugins/Bro_UDP.events.bif.bro
|
||||
build/scripts/base/bif/plugins/Bro_Unified2.events.bif.bro
|
||||
build/scripts/base/bif/plugins/Bro_Unified2.types.bif.bro
|
||||
build/scripts/base/bif/plugins/Bro_ZIP.events.bif.bro
|
||||
scripts/base/frameworks/logging/__load__.bro
|
||||
scripts/base/frameworks/logging/main.bro
|
||||
|
@ -210,6 +212,8 @@ scripts/base/init-default.bro
|
|||
scripts/base/files/hash/main.bro
|
||||
scripts/base/files/extract/__load__.bro
|
||||
scripts/base/files/extract/main.bro
|
||||
scripts/base/files/unified2/__load__.bro
|
||||
scripts/base/files/unified2/main.bro
|
||||
scripts/base/misc/find-checksum-offloading.bro
|
||||
scripts/policy/misc/loaded-scripts.bro
|
||||
#close 2013-08-12-18-22-49
|
||||
#close 2013-08-14-01-19-28
|
||||
|
|
|
@ -0,0 +1,11 @@
|
|||
#separator \x09
|
||||
#set_separator ,
|
||||
#empty_field (empty)
|
||||
#unset_field -
|
||||
#path unified2
|
||||
#open 2013-08-13-07-16-01
|
||||
#fields ts id.src_ip id.src_p id.dst_ip id.dst_p sensor_id signature_id signature generator_id generator signature_revision classification_id classification priority_id event_id packet
|
||||
#types time addr port addr port count count string count string count count string count count string
|
||||
1323827323.000000 192.168.1.72 50185 74.125.225.49 80 0 2003058 ET MALWARE 180solutions (Zango) Spyware Installer Download 1 snort general alert 5 21 trojan-activity 1 2 \xd80bH\xc5\xb5x\xca9\xb7\xe4r\x08\x00E\x10\x00\\x1a\xce@\x00@\x062\x1f\xc0\xa8\x01HJ}\xe11\xc4\x09\x00P*\xa8bv]z/\xde\x80\x18\x82+\x88,\x00\x00\x01\x01\x08\x0a\x17J\x83Q\xfe\xad\xac\x1aGET /Zango/ZangoInstaller.exe HTTP/1.0\x0d\x0a
|
||||
1323827344.000000 192.168.1.72 49862 199.47.216.144 80 0 2012647 ET POLICY Dropbox.com Offsite File Backup in Use 1 snort general alert 3 33 policy-violation 1 3 \xd80bH\xc5\xb5x\xca9\xb7\xe4r\x08\x00E\x00\x00\xf8Q\xdf@\x00@\x06\x86p\xc0\xa8\x01H\xc7/\xd8\x90\xc2\xc6\x00P\x9cm\x97U\xf07\x084\x80\x18\x82\x18%<\x00\x00\x01\x01\x08\x0a\x17J\xd7\xde\x00\x92\x81\xc5GET /subscribe?host_int=43112345&ns_map=123456_1234524412104916591&ts=1323827344 HTTP/1.1\x0d\x0aHost: notify1.dropbox.com\x0d\x0aAccept-Encoding: identity\x0d\x0aConnection: keep-alive\x0d\x0aX-Dropbox-Locale: en_US\x0d\x0a\x0d\x0a
|
||||
#close 2013-08-13-07-16-01
|
|
@ -3,8 +3,8 @@
|
|||
#empty_field (empty)
|
||||
#unset_field -
|
||||
#path files
|
||||
#open 2013-07-25-16-57-31
|
||||
#open 2013-08-14-04-50-17
|
||||
#fields ts fuid tx_hosts rx_hosts conn_uids source depth analyzers mime_type filename duration local_orig is_orig seen_bytes total_bytes missing_bytes overflow_bytes timedout parent_fuid md5 sha1 sha256 extracted
|
||||
#types time string table[addr] table[addr] table[string] string count table[string] string string interval bool bool count count count count bool string string string string string
|
||||
1362692527.009721 G75mcAsU764 192.150.187.43 141.142.228.5 UWkUyAuUGXf HTTP 0 SHA256,DATA_EVENT,MD5,EXTRACT,SHA1 text/plain - 0.000054 - F 4705 4705 0 0 F - 397168fd09991a0e712254df7bc639ac 1dd7ac0398df6cbc0696445a91ec681facf4dc47 4e7c7ef0984119447e743e3ec77e1de52713e345cde03fe7df753a35849bed18 G75mcAsU764-file
|
||||
#close 2013-07-25-16-57-31
|
||||
#close 2013-08-14-04-50-17
|
||||
|
|
BIN
testing/btest/Files/unified2.u2
Executable file
BIN
testing/btest/Files/unified2.u2
Executable file
Binary file not shown.
|
@ -14,6 +14,7 @@ LC_ALL=C
|
|||
BTEST_PATH=%(testbase)s/../../aux/btest
|
||||
PATH=%(testbase)s/../../build/src:%(testbase)s/../scripts:%(testbase)s/../../aux/btest:%(testbase)s/../../aux/bro-aux/bro-cut:%(default_path)s
|
||||
TRACES=%(testbase)s/Traces
|
||||
FILES=%(testbase)s/Files
|
||||
SCRIPTS=%(testbase)s/../scripts
|
||||
DIST=%(testbase)s/../..
|
||||
BUILD=%(testbase)s/../../build
|
||||
|
|
76
testing/btest/scripts/base/files/unified2/alert.bro
Normal file
76
testing/btest/scripts/base/files/unified2/alert.bro
Normal file
|
@ -0,0 +1,76 @@
|
|||
# @TEST-EXEC: bro -b %INPUT Unified2::watch_file=$FILES/unified2.u2
|
||||
# @TEST-EXEC: btest-diff unified2.log
|
||||
|
||||
@TEST-START-FILE sid_msg.map
|
||||
2003058 || ET MALWARE 180solutions (Zango) Spyware Installer Download || url,doc.emergingthreats.net/bin/view/Main/2003058 || url,securityresponse.symantec.com/avcenter/venc/data/pf/adware.180search.html
|
||||
2012647 || ET POLICY Dropbox.com Offsite File Backup in Use || url,dereknewton.com/2011/04/dropbox-authentication-static-host-ids/ || url,www.dropbox.com
|
||||
@TEST-END-FILE
|
||||
|
||||
@TEST-START-FILE gen_msg.map
|
||||
1 || 1 || snort general alert
|
||||
2 || 1 || tag: Tagged Packet
|
||||
3 || 1 || snort dynamic alert
|
||||
100 || 1 || spp_portscan: Portscan Detected
|
||||
100 || 2 || spp_portscan: Portscan Status
|
||||
100 || 3 || spp_portscan: Portscan Ended
|
||||
101 || 1 || spp_minfrag: minfrag alert
|
||||
@TEST-END-FILE
|
||||
|
||||
@TEST-START-FILE classification.config
|
||||
#
|
||||
# config classification:shortname,short description,priority
|
||||
#
|
||||
|
||||
#Traditional classifications. These will be replaced soon
|
||||
|
||||
config classification: not-suspicious,Not Suspicious Traffic,3
|
||||
config classification: unknown,Unknown Traffic,3
|
||||
config classification: bad-unknown,Potentially Bad Traffic, 2
|
||||
config classification: attempted-recon,Attempted Information Leak,2
|
||||
config classification: successful-recon-limited,Information Leak,2
|
||||
config classification: successful-recon-largescale,Large Scale Information Leak,2
|
||||
config classification: attempted-dos,Attempted Denial of Service,2
|
||||
config classification: successful-dos,Denial of Service,2
|
||||
config classification: attempted-user,Attempted User Privilege Gain,1
|
||||
config classification: unsuccessful-user,Unsuccessful User Privilege Gain,1
|
||||
config classification: successful-user,Successful User Privilege Gain,1
|
||||
config classification: attempted-admin,Attempted Administrator Privilege Gain,1
|
||||
config classification: successful-admin,Successful Administrator Privilege Gain,1
|
||||
config classification: rpc-portmap-decode,Decode of an RPC Query,2
|
||||
config classification: shellcode-detect,Executable Code was Detected,1
|
||||
config classification: string-detect,A Suspicious String was Detected,3
|
||||
config classification: suspicious-filename-detect,A Suspicious Filename was Detected,2
|
||||
config classification: suspicious-login,An Attempted Login Using a Suspicious Username was Detected,2
|
||||
config classification: system-call-detect,A System Call was Detected,2
|
||||
config classification: tcp-connection,A TCP Connection was Detected,4
|
||||
config classification: trojan-activity,A Network Trojan was Detected, 1
|
||||
config classification: unusual-client-port-connection,A Client was Using an Unusual Port,2
|
||||
config classification: network-scan,Detection of a Network Scan,3
|
||||
config classification: denial-of-service,Detection of a Denial of Service Attack,2
|
||||
config classification: non-standard-protocol,Detection of a Non-Standard Protocol or Event,2
|
||||
config classification: protocol-command-decode,Generic Protocol Command Decode,3
|
||||
config classification: web-application-activity,Access to a Potentially Vulnerable Web Application,2
|
||||
config classification: web-application-attack,Web Application Attack,1
|
||||
config classification: misc-activity,Misc activity,3
|
||||
config classification: misc-attack,Misc Attack,2
|
||||
config classification: icmp-event,Generic ICMP event,3
|
||||
config classification: inappropriate-content,Inappropriate Content was Detected,1
|
||||
config classification: policy-violation,Potential Corporate Privacy Violation,1
|
||||
config classification: default-login-attempt,Attempt to Login By a Default Username and Password,2
|
||||
@TEST-END-FILE
|
||||
|
||||
redef exit_only_after_terminate = T;
|
||||
|
||||
@load base/files/unified2
|
||||
|
||||
redef Unified2::sid_msg = @DIR+"/sid_msg.map";
|
||||
redef Unified2::gen_msg = @DIR+"/gen_msg.map";
|
||||
redef Unified2::classification_config = @DIR+"/classification.config";
|
||||
global i = 0;
|
||||
|
||||
event Unified2::alert(f: fa_file, ev: Unified2::IDSEvent, pkt: Unified2::Packet)
|
||||
{
|
||||
++i;
|
||||
if ( i == 2 )
|
||||
terminate();
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue