GROUP_NAME=IRCBDCHANNELS GROUP_DESCRIPTION=This group contains custom IRC-backdoor-trojan Dragon NIDS signatures. These signatures detect clients registering with a number of IRC channel names commonly used as the remote-control channel for trojans/worms which register themselves after infection to await further instruction, report on progress compromising more machines, etc. NOTE they currently use port 6667, the default IRC port. It would be better to define a local COMPLEX port entry, such as 'I', which listed a wider range of ports commonly used by IRC servers, such as perhaps 6666-7000. # $Id: IRCBDCHAN.lib,v 1.4 2006/05/19 15:10:31 hlein Exp $ NAME=BACKDOOR:IRC-JOIN-FUCK0F SIGNATURE=T D A S 50 40 6667 BACKDOOR:IRC-JOIN-FUCK0F join , fuck0f DESCRIPTION=Signature to try to catch IRC startup with a CroNation IRC server. Based on signatures contributed by Mike Iglesias. MODIFIED=Y DISABLED=N NAME=BACKDOOR:IRC-JOIN-CRONATION2 SIGNATURE=T D A S 50 40 6667 BACKDOOR:IRC-JOIN-CRONATION2 join , cronation DESCRIPTION=Signature to try to catch IRC startup with a CroNation IRC server. Based on signatures contributed by Mike Iglesias. MODIFIED=Y DISABLED=N NAME=BACKDOOR:IRC-JOIN-NEWBOT SIGNATURE=T D A S 50 30 6667 BACKDOOR:IRC-JOIN-NEWBOT join , /23newbot DESCRIPTION=Signature to try to catch IRC startup with a NEWBOT botnet. Based on signatures contributed by Mike Iglesias. MODIFIED=Y DISABLED=N NAME=BACKDOOR:IRC-JOIN-NULLZ0R SIGNATURE=T D A S 50 30 6667 BACKDOOR:IRC-JOIN-NULLZ0R join , /23nullz0r DESCRIPTION=Signature to try to catch IRC startup with a nullz0r botnet. Based on signatures contributed by Mike Iglesias. MODIFIED=Y DISABLED=N NAME=BACKDOOR:IRC-JOIN-NEUKEN SIGNATURE=T D A S 50 30 6667 BACKDOOR:IRC-JOIN-NEUKEN join , /23neuken DESCRIPTION=Signature to try to catch IRC startup with a neuken botnet. Based on signatures contributed by Mike Iglesias. MODIFIED=Y DISABLED=N NAME=BACKDOOR:IRC-JOIN-LASTIMEZ SIGNATURE=T D A S 50 30 6667 BACKDOOR:IRC-JOIN-LASTIMEZ join , /23lastimez DESCRIPTION=Signature to try to catch IRC startup with a lastimez botnet. Based on signatures contributed by Mike Iglesias. MODIFIED=Y DISABLED=N NAME=BACKDOOR:IRC-JOIN-BOMB SIGNATURE=T D A S 50 30 6667 BACKDOOR:IRC-JOIN-LASTIMEZ join/20/23bomb/0a DESCRIPTION=Signature to try to catch IRC startup with a bomb botnet. MODIFIED=Y DISABLED=N NAME=BACKDOOR:IRC-JOIN-GENERAL-E SIGNATURE=T D A S 50 30 6667 BACKDOOR:IRC-JOIN-GENERAL-E join , general/2de DESCRIPTION=Signature to try to catch IRC startup with a lastimez botnet. Based on information contributed by Mike Iglesias. MODIFIED=Y DISABLED=N NAME=WORM:SARA2003-JOIN SIGNATURE=T D A S 5 0 6667 WORM:SARA2003-JOIN join/20/23xcnicxxcncx DESCRIPTION=A worm has been identified which spreads by socially engineering victims in IRC channels into opening .scr files (executables). The worm joins a control channel, currently #xcnicxxcncx, and awaits instruction to launch DDoS attacks, etc. This signature attempts to catch the worm joining its control channel. This might easily be changed in a new release of the worm. URLREF=https://marc.theaimsgroup.com/?l=full-disclosure&m=106956790815079&w=2 MODIFIED=Y DISABLED=N NAME=BACKDOOR:IRC-JOIN-EDU SIGNATURE=T D A S 5 0 6667 BACKDOOR:IRC-JOIN-EDU join/20/23edu DESCRIPTION=A common backdoor registers itself with IRC servers (mybitch.ioi.net, hub.rofl.org, or others) in the channel '#edu'. There it awaits instructions on systems to scan, exploits to launch (such as LSASS), etc. This signature detects outbound connections from compromised machines attempting to register themselves on that IRC channel. This might easily be changed in a new release of the worm. MODIFIED=Y DISABLED=N NAME=BACKDOOR:IRC-JOIN-BOT SIGNATURE=T B A B 100 30 H BACKDOOR:IRC-JOIN-BOT JOIN/20/23bot/20c123 DESCRIPTION=A new backdoor found spreading since 2004-07-06 registers itself with IRC servers (63.214.57.133 and 209.254.89.184 on port 7000 so far) and joins the channel '#bot c123'. Infected machines then receive instructions of other hosts to scan, etc. This signature detects infected machines registering on the IRC bot network. This might easily be changed in a new release of the worm. MODIFIED=Y DISABLED=N UPDATED=N NAME=BACKDOOR:IRC-JOIN-EXPLOIT SIGNATURE=T B A S 100 30 H BACKDOOR:IRC-JOIN-EXPLOIT join/20/23exploit DESCRIPTION=Signature to try to catch IRC startup with a generic bot that join a channel called '#exploit'. MODIFIED=Y DISABLED=N UPDATED=N NAME=BACKDOOR:IRC-JOIN-AMSEXY SIGNATURE=T B A S 100 30 H BACKDOOR:IRC-JOIN-AMSEXY join/20/23amsexy DESCRIPTION=Signature to try to catch IRC startup with a generic bot that join a channel called '#amsexy'. MODIFIED=Y DISABLED=N UPDATED=N NAME=BACKDOOR:IRC-JOIN-RBOT SIGNATURE=T B A S 100 30 H BACKDOOR:IRC-JOIN-RBOT join/20/23rbot DESCRIPTION=Signature to try to catch IRC startup with a generic bot that join a channel called '#rbot'. MODIFIED=Y DISABLED=N UPDATED=N NAME=BACKDOOR:IRC-JOIN-GB SIGNATURE=T B A S 100 30 H BACKDOOR:IRC-JOIN-GB join/20/23gb DESCRIPTION=Signature to try to catch IRC startup with a generic bot that join a channel called '#gb'. MODIFIED=Y DISABLED=N UPDATED=N NAME=BACKDOOR:IRC-JOIN-MSN-JB SIGNATURE=T D A S 50 40 6667 BACKDOOR:IRC-JOIN-MSN-JB join , /24msn/20jigaboo DESCRIPTION=Signature to try to catch IRC startup with a generic bot that joins a channel called '#$msn'. MODIFIED=Y DISABLED=N UPDATED=N NAME=BACKDOOR:IRC-DNS-LOOKUP SIGNATURE=U D A S 10 100 53 BACKDOOR:IRC-DNS-LOOKUP element-is.ph33rl3ss.us DESCRIPTION=Some worms contain a phone-home component which connects to an IRC server under the attacker's control. The hostname of the IRC server is hard-coded in the worm, and it performs a DNS lookup to find which server to connect to--this allows the attacker to move the control node as old ones are discovered and shut down. This signature detects lookups for one of those hostnaes used for a control node, element-is.ph33rl3ss.us. MODIFIED=Y DISABLED=N UPDATED=N NAME=BACKDOOR:DNS-SLTCPB SIGNATURE=U D A S 300 200 53 BACKDOOR:DNS-SLTCPB symantec/05loves/03the/04cock/05pheer/03biz DESCRIPTION=Some worms contain a phone-home component which connects to an IRC server under the attacker's control. The hostname of the IRC server is hard-coded in the worm, and it performs a DNS lookup to find which server to connect to--this allows the attacker to move the control node as old ones are discovered and shut down. This signature detects lookups for one of those hostnames used for a control node, symantec.loves.the.cock.pheer.biz. MODIFIED=Y DISABLED=N UPDATED=N NAME=BACKDOOR:DNS-OGN SIGNATURE=U D A S 300 200 53 BACKDOOR:DNS-OGN owjgp/08game2max/03net DESCRIPTION=Some worms contain a phone-home component which connects to an IRC server under the attacker's control. The hostname of the IRC server is hard-coded in the worm, and it performs a DNS lookup to find which server to connect to--this allows the attacker to move the control node as old ones are discovered and shut down. This signature detects lookups for one of those hostnaes used for a control node, owjgp.game2max.net. MODIFIED=Y DISABLED=N UPDATED=N