[Snort-sigs] Win.Trojan.Bandios

Phillip Lee phillile at sourcefire.com
Tue Apr 3 09:27:54 EDT 2018


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 Apr 3, 2018, at 9:08 AM, Y M via Snort-sigs <snort-sigs at lists.snort.org> wrote:
> 
> Hi,
> 
> The below rules are for Win.Trojan.Bandios. Pcaps from the samples in the references are available.
> 
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC Win.Trojan.Bandios outbound connection attempt"; flow:to_server,established; content:"POST"; http_method; content:"/dump/io/"; fast_pattern:only; http_uri; content:".php"; http_uri; content:!"Connection"; http_header; content:!"Referer"; http_header; metadata:ruleset community, service http; reference:url,www.virustotal.com/#/file/3f11ea10cb7dc4ed8e22de64e9218b1c481beb8b6f4bf0c1ba6b021e9e3f6f72/detection <http://www.virustotal.com/#/file/3f11ea10cb7dc4ed8e22de64e9218b1c481beb8b6f4bf0c1ba6b021e9e3f6f72/detection>; reference:url,www.virustotal.com/#/file/ee3302fc5fca16f74a9fed36f14db4139ca3d9f8a4528e67797862dd91b7f5be/detection <http://www.virustotal.com/#/file/ee3302fc5fca16f74a9fed36f14db4139ca3d9f8a4528e67797862dd91b7f5be/detection>; classtype:trojan-activity; sid:9000046; rev:1;)
> 
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC User-Agent known malicious user-agent string DoPost - Win.Trojan.Bandios"; flow:to_server,established; content:"User-Agent|3A 20|DoPost|0D 0A|"; fast_pattern:only; http_header; metadata:ruleset community, service http; reference:url,www.virustotal.com/#/file/3f11ea10cb7dc4ed8e22de64e9218b1c481beb8b6f4bf0c1ba6b021e9e3f6f72/detection <http://www.virustotal.com/#/file/3f11ea10cb7dc4ed8e22de64e9218b1c481beb8b6f4bf0c1ba6b021e9e3f6f72/detection>; reference:url,www.virustotal.com/#/file/ee3302fc5fca16f74a9fed36f14db4139ca3d9f8a4528e67797862dd91b7f5be/detection <http://www.virustotal.com/#/file/ee3302fc5fca16f74a9fed36f14db4139ca3d9f8a4528e67797862dd91b7f5be/detection>; classtype:trojan-activity; sid:9000047; rev:1;)
> 
> Thank you.
> YM
> 

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