[Snort-sigs] Win.Trojan.Kwampirs

Phillip Lee phillile at sourcefire.com
Fri Apr 27 11:01:40 EDT 2018


Yaser,

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

Regards,
Phil Lee
Cisco Talos

> On Apr 27, 2018, at 10:25 AM, Y M via Snort-sigs <snort-sigs at lists.snort.org> wrote:
> 
> Hi,
> 
> These are pretty weak signatures, there is little information to go by. No pcaps available.
> 
> # Title: New Orangeworm attack group targets the healthcare sector in the U.S., Europe, and Asia
> # Reference: https://www.symantec.com/blogs/threat-intelligence/orangeworm-targets-healthcare-us-europe-asia <https://www.symantec.com/blogs/threat-intelligence/orangeworm-targets-healthcare-us-europe-asia>, https://content.connect.symantec.com/sites/default/files/2018-04/Orangeworm%20IOCs.pdf <https://content.connect.symantec.com/sites/default/files/2018-04/Orangeworm%20IOCs.pdf>
> 
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC Win.Trojan.Kwampirs outbound connection attempt"; flow:to_server,established; content:"?q=kt"; fast_pattern:only; http_uri; pcre:"/\.(php|asp)\x3fq\x3dkt.*\x3d\x3d/U"; metadata:ruleset community, service http; reference:url,www.symantec.com/blogs/threat-intelligence/orangeworm-targets-healthcare-us-europe-asia <http://www.symantec.com/blogs/threat-intelligence/orangeworm-targets-healthcare-us-europe-asia>; reference:url,content.connect.symantec.com/sites/default/files/2018-04/Orangeworm%20IOCs.pdf <http://content.connect.symantec.com/sites/default/files/2018-04/Orangeworm%20IOCs.pdf>; classtype:trojan-activity; sid:8000020; rev:1;)
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC Win.Trojan.Kwampirs outbound connection attempt"; flow:to_server,established; content:"?q=KT"; fast_pattern:only; http_uri; pcre:"/\.(php|asp)\x3fq\x3dKT.*\x3d\x3d/U"; metadata:ruleset community, service http; reference:url,www.symantec.com/blogs/threat-intelligence/orangeworm-targets-healthcare-us-europe-asia <http://www.symantec.com/blogs/threat-intelligence/orangeworm-targets-healthcare-us-europe-asia>; reference:url,content.connect.symantec.com/sites/default/files/2018-04/Orangeworm%20IOCs.pdf <http://content.connect.symantec.com/sites/default/files/2018-04/Orangeworm%20IOCs.pdf>; classtype:trojan-activity; sid:8000021; rev:1;)
> 
> Thanks.
> YM
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