Win.Trojan.Tiggre

[Y M via Snort-sigs <snort-sigs () lists snort org>]

Hi,


This one for detecting Tiggre (aka SilverStart). Pcap is available.


alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"MALWARE-CNC Win.Trojan.Tiggre - SilverStar - outbound connection"; 
flow:to_server,established; content:"GET"; http_method; content:"/api.php?"; fast_pattern:only; content:"response="; 
http_uri; content:"&cpu="; http_uri; content:"&gpu="; http_uri; content:"&ram="; http_uri; metadata:ruleset community, 
service http; content:!"User-Agent"; http_header; content:!"Referer"; http_header; 
reference:url,www.virustotal.com/#/file/3f751799a501532f43ca5f12fe80aa0bad78f9f5d57e76bf49b401bb99f355df/detection; 
classtype:trojan-activity; sid:9000038; rev:1;)


Thank.

YM

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