Re: Ads data leaks sigs

[Phillip Lee <phillile () sourcefire com>]

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 10:38 AM, Y M via Snort-sigs <snort-sigs () lists snort org> wrote:
>
> Hi,
>
> The first set of signatures are derived from the reference. The second set of rule(s) triggers against a fake Windows 
> prizes ads. The goal of the detection is to prevent the leakage of user data that these ads SDKs send. Such data can 
> be too revealing.
>
> # Title: Leaking ads
> # Reference: https://securelist.com/leaking-ads/85239/ <https://securelist.com/leaking-ads/85239/>
>
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"PUA-OTHER mobile ads SDK potential user data leak"; 
> flow:to_server,established; content:"POST"; http_method; content:"Package-Name: "; fast_pattern:only; http_header; 
> content:"/qga/"; http_uri; content:"/data/"; http_uri; content:"Content-Type|3A 20|application/json"; http_header; 
> content:"appSecrect|3A 20|"; http_header; metadata:ruleset community, service http; 
> reference:url,securelist.com/leaking-ads/85239/ <http://securelist.com/leaking-ads/85239/>; classtype:misc-activity; 
> sid:8000000; rev:1;)
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"PUA-OTHER mobile ads SDK potential user data leak"; 
> flow:to_server,established; content:"GET"; http_method; content:"/m/ad?"; fast_pattern:only; http_uri; content:"id="; 
> http_uri; content:"&nv="; http_uri; content:"&dn="; http_uri; metadata:ruleset community, service http; 
> reference:url,securelist.com/leaking-ads/85239/ <http://securelist.com/leaking-ads/85239/>; classtype:misc-activity; 
> sid:8000001; rev:1;)
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"PUA-OTHER mobile ads SDK potential user data leak"; 
> flow:to_server,established; content:"GET"; http_method; content:"/getAd?"; fast_pattern:only; http_uri; 
> content:"apid="; http_uri; content:"&ua="; http_uri; content:"&hswd="; http_uri; content:"&uip="; http_uri; 
> content:"&conn="; http_uri; content:"&pkid="; http_uri; metadata:ruleset community, service http; 
> reference:url,securelist.com/leaking-ads/85239/ <http://securelist.com/leaking-ads/85239/>; classtype:misc-activity; 
> sid:8000002; rev:1;)
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"PUA-OTHER Lenovo mobile app potenial user data leak"; 
> flow:to_server,established; content:"/reaper/server/didsync"; fast_pattern:only; http_uri; content:"sv="; 
> http_client_body; content:"did="; http_client_body; metadata:ruleset community, service http; 
> reference:url,securelist.com/leaking-ads/85239/ <http://securelist.com/leaking-ads/85239/>; classtype:misc-activity; 
> sid:8000003; rev:1;)
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"PUA-OTHER Lenovo mobile app potenial user data leak"; 
> flow:to_server,established; content:"/ams/api/register?"; fast_pattern:only; http_uri; content:"l="; http_uri; 
> content:"|7B 22|channel|22|"; http_client_body; content:"|22|deviceBrand|22|"; http_client_body; metadata:ruleset 
> community, service http; reference:url,securelist.com/leaking-ads/85239/ <http://securelist.com/leaking-ads/85239/>; 
> classtype:misc-activity; sid:8000004; rev:1;)
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"PUA-OTHER Easemob-SDK mobile app service plaintext 
> authentication"; flow:to_server,established; content:"POST"; http_method; content:"/xlsummary/toekn"; 
> fast_pattern:only; http_uri; content:"User-Agent: Easemob-SDK"; http_header; content:"|22|password|22|"; 
> http_client_body; content:"|22|username|22|"; http_client_body; metadata:ruleset community, service http; 
> reference:url,securelist.com/leaking-ads/85239/ <http://securelist.com/leaking-ads/85239/>; classtype:misc-activity; 
> sid:8000005; rev:1;)
>
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"PUA-OTHER winip7en fake Windows prize redirection 
> information exposure"; flow:to_server,established; content:"GET"; http_method; content:"/winip7en_win.html?"; 
> fast_pattern:only; http_uri; content:"isp="; http_uri; content:"&model="; http_uri; metadata:ruleset community, 
> service http; classtype:trojan-activity; sid:8000016; rev:1;)
>
> Thanks.
> YM
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