alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; content:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; http_uri; reference:url,doc.emergingthreats.net/2008232; classtype:trojan-activity; sid:2008232; rev:5; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2017-08-07 21:01:24 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; content:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; http_uri; reference:url,doc.emergingthreats.net/2008232; classtype:trojan-activity; sid:2008232; rev:5;)

Added 2011-10-12 19:24:42 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; content:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; http_uri; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2008232; sid:2008232; rev:5;)

Added 2011-09-14 22:38:10 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; content:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; http_uri; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2008232; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Tibs; sid:2008232; rev:5;)

Added 2011-07-19 09:37:53 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; content:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; http_uri; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2008232; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Tibs; sid:2008232; rev:5;)

Added 2011-07-19 00:15:47 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; content:"/count.htm"; nocase; http_uri; content:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; http_uri; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2008232; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Tibs; sid:2008232; rev:4;)

Added 2011-02-04 17:27:20 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; uricontent:"/count.htm"; nocase; uricontent:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2008232; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Tibs; sid:2008232; rev:3;)

Added 2009-02-13 19:47:26 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; uricontent:"/count.htm"; nocase; uricontent:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2008232; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Tibs; sid:2008232; rev:3;)

Added 2009-02-13 19:47:26 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; uricontent:"/count.htm"; nocase; uricontent:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2008232; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Tibs; sid:2008232; rev:3;)

Added 2009-02-13 19:46:39 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; uricontent:"/count.htm"; nocase; uricontent:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2008232; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Tibs; sid:2008232; rev:3;)

Added 2009-02-13 19:46:39 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; uricontent:"/count.htm"; nocase; uricontent:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2008232; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Tibs; sid:2008232; rev:3;)

Added 2009-02-13 19:45:23 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; uricontent:"/count.htm"; nocase; uricontent:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; classtype:trojan-activity; reference:url,doc.emergingthreats.net/2008232; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/VIRUS/TROJAN_Tibs; sid:2008232; rev:3;)

Added 2009-02-13 19:45:23 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; uricontent:"/count.htm"; nocase; uricontent:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; classtype:trojan-activity; sid:2008232; rev:2;)

Added 2008-07-08 13:56:29 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; uricontent:"/count.htm"; nocase; uricontent:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtI"; classtype:trojan-activity; sid:2008232; rev:2;)

Added 2008-07-08 13:56:29 UTC


alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET TROJAN Generic Spambot (often Tibs) Post-Infection Checkin (justcount.net likely)"; flow:established,to_server; uricontent:"/count.htm"; nocase; uricontent:"/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1b"; classtype:trojan-activity; sid:2008232; rev:1;)

Added 2008-05-19 12:40:12 UTC


Interesting domain we've been tracking, justcount dot net. It seems to be used by trojans ranging from Tibs/Zhelatin/Nuwar to some general downlaoders and droppers. Usually the malware hits a url of one of the following variations:

traff.justcount.net 
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrPC4jbGJ1MiA1PGVpfC4yNC9iUUcDAAcKEwkcVBwTXF1f/count.htm 

 
traff.justcount.net 
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFxwCHQAaBwICHQUE
SgANDgkLGlxIAmgvNy8obGA1KTp3e2orOyw7bGJ1ITs_JmVofDo_PjEqDhVfBhxVVlY=/count.htm         

 
traff.justcount.net
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrPC4jbGJ1MiA1PGVpfC4yNC9iUEcDAAcKEwkcVBwTXF1f/count.htm 

 
traff.justcount.net
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrPC4jbGJ1MiA1PGVpfC4yNC9iUUcDAAcKEwkcVA8KCwEL/count.htm 

 
traff.justcount.net
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrPC4jbGJ1MiA1PGVpfC4yNC9iUUcDAAcKEwkcVBwTXF1f/count.htm 


traff.justcount.net
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrPC4jbGJ1MiA1PGVpfC4yNC9iUEcDAAcKEwkcVBwTXF1f/count.htm 


traff.justcount.net
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrPC4jbGJ1MiA1PGVofC4yNC9iUUcDAAcKEwkcVA8TXF1f/count.htm 
 

traff.justcount.net
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrPC4jbGJ1MiA1PGVofC4yNC9iUUcDAAcKEwkcVBwTXF1f/count.htm 
 

traff.justcount.net
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrPC4jbGJ1MiA1PGVofC4yNC9iUEcDAAcKEwkcVBwTXF1f/count.htm 

 
traff.justcount.net
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrPC4jbGJ1MiA1PGVpfC4yNC9iUUcDAAcKEwkcVA8KCwEL/count.htm 

 
traff.justcount.net
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrPC4jbGJ1MiA1PGVofC4yNC9iUUcDAAcKEwkcVA8TXF1c/count.htm 

 
traff.justcount.net
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrPC4jbGJ1MiA1PGVpfC4yNC9iUUcDAAcKEwkcVA8TXF1f/count.htm 


traff.justcount.net
/t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1bFx0CHQAdCQECHQYE
DgdEDwgCDA0QDXF5cmUlM3tvJjwmJ2VrP4jbGJ1MiA1PGVofC4yNC9iUUcDAAcKEwkcVA8KCwEL/count.htm

There is a pattern apparently, but minor variations over nearly 500 samples. Put up signature 2008232 using the base pattern /t/d2hsdWF3OzJ0OHY5Oj0,cyJtIG8kaUVyam9zeHk9Tn5DSgIRAkxDUU1b. Please let me know how this goes, or if anyone sees a more definite pattern to the urls.

Matt

Topic revision: r2 - 2008-05-19 - MattJonkman
 
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