[Snort-sigs] Mumblehard sig

James Lay jlay at ...3266...
Fri May 1 12:21:49 EDT 2015

....mumblehard..really?  ANYWAY:

alert tcp $EXTERNAL_NET any -> $HOME_NET 25 (msg:"MALWARE-OTHER Possible 
Mumblehard UA"; flow:to_server,established; content:"User-Agent|3a| 
Mozilla|2f|5.0 |28|Windows NT 6.1|3b| rv|3a|7.0.1|29| Gecko|2f|"; 
fast_pattern:only; content:"Firefox|2f|7.0.1"; 
classtype:bad-unknown; sid:10000159; rev:1;)

if your org is REALLY running Firefox 7.0.1 (released in September 
2011), then chances are this WILL false.  Standard disclaimer of "fix it 
if it needs it" applies.  Sanity checked only.


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