Re: Andr.Trojan.Femas (ViperRAT)

[Tyler Montier <tmontier () sourcefire com>]

Yaser,

Thanks for your submission. We will review the rule and get back to you
when its finished.

Sincerely,

Tyler Montier
Cisco Talos

On Sun, Feb 19, 2017 at 12:39 AM, Y M <snort () outlook com> wrote:

> Hello,
>
>
> The below signature was derived from the articles from the reference. No
> pcaps available.
>
>
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"MALWARE-CNC
> Andr.Trojan.Femas outbound connection"; flow:to_client,established;
> content:"POST"; http_method; content:"did="; http_client_body;
> content:"&method="; fast_pattern:only; content:".php"; http_uri;
> content:"|3B| Android "; http_header; content:"Accept-Encoding|3A
> 20|gzip|0D 0A|"; http_header; content:!"Accept|3A 20|"; http_header;
> metadata:ruleset community, service http; reference:url,securelist.com/
> blog/incidents/77562/breaking-the-weakest-link-of-the-strongest-chain/;
> reference:url,blog.lookout.com/blog/2017/02/16/viperrat-mobile-apt/;
> classtype:trojan-activity; sid:1000847; rev:1;)
>
>
> Thank you.
>
> YM
>
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