[Snort-sigs] Blackrev C2 sigs

Patrick Mullen pmullen at ...435...
Tue May 21 17:17:46 EDT 2013


Thanks, James!  They should be in tonight's community build as sids 26713-26715.


~Patrick

On Tue, May 21, 2013 at 4:25 PM, James Lay <jlay at ...3266...> wrote:
> Enjoy:
>
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC
> Win.Trojan.BlackRev Rev 1 C2 Traffic"; content:"GET"; http_method;
> content:"gate.php|3f|reg="; http_uri;
> pcre:"/gate\x2ephp\x3freg=[a-z]{10}/m"; content:"User-Agent|3a|
> Mozilla/4.0 (compatible|3b| Synapse)|0d 0a|"; http_header;
> metadata:policy balanced-ips drop, policy security-ips drop, ruleset
> community service http;
> reference:url,http://ddos.arbornetworks.com/2013/05/the-revolution-will-be-written-in-delphi;
> classtype:trojan-activity; sid:10000066; rev:1;)
>
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC
> Win.Trojan.BlackRev Rev 2 C2 Traffic"; content:"GET"; http_method;
> content:"gate.php|3f|reg="; http_uri;
> pcre:"/gate\x2ephp\x3freg=[a-z]{15}/mi"; content:"User-Agent|3a|
> Mozilla/4.0 (compatible|3b| SEObot)|0d 0a|"; http_header;
> metadata:policy balanced-ips drop, policy security-ips drop, ruleset
> community service http;
> reference:url,http://ddos.arbornetworks.com/2013/05/the-revolution-will-be-written-in-delphi;
> classtype:trojan-activity; sid:10000067; rev:1;)
>
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC
> Win.Trojan.BlackRev Rev 3 C2 Traffic"; content:"GET"; http_method;
> content:"gate.php|3f|id="; http_uri;
> pcre:"/gate\x2ephp\x3fid=[a-z]{15}/mi"; content:"User-Agent|3a|
> Mozilla/4.0 (compatible|3b| SEObot)|0d 0a|"; http_header;
> metadata:policy balanced-ips drop, policy security-ips drop, ruleset
> community service http;
> reference:url,http://ddos.arbornetworks.com/2013/05/the-revolution-will-be-written-in-delphi;
> classtype:trojan-activity; sid:10000068; rev:1;)
>
> Lot's of good info on that reference link.
>
> James
>
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-- 
Patrick Mullen
Response Research Manager
Sourcefire VRT




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