Re: Win.Trojan.Tiggre

[Phillip Lee <phillile () sourcefire com>]

Yaser,

Thanks for your submission. We will review the rules and get back to you when they're finished. 

Can you send along the pcaps that you have? 

Regards,
Phil Lee
Cisco Talos

> On Feb 19, 2018, at 1:26 PM, Y M via Snort-sigs <snort-sigs () lists snort org> wrote:
>
> 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 
> <http://www.virustotal.com/#/file/3f751799a501532f43ca5f12fe80aa0bad78f9f5d57e76bf49b401bb99f355df/detection>; 
> classtype:trojan-activity; sid:9000038; rev:1;)
>
> Thank.
> YM
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