ET HUNTING [@Silv0123] Possible Fake Microsoft Office User-Agent Observed
Sourceet/open
CreatedSeptember 16, 2021
UpdatedOctober 25, 2021
Classificationbad-unknown
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING [@Silv0123] Possible Fake Microsoft Office User-Agent Observed"; flow:established,to_server; http.user_agent; content:"Microsoft Office"; startswith; fast_pattern; pcre:"/^[^\x3b\x2f\x28]+$/R"; content:!"2014"; endswith; content:!"Discovery"; endswith; content:!"OneNote"; endswith; reference:url,twitter.com/silv0123/status/1437869745961832455; classtype:bad-unknown; sid:2033960; rev:3; metadata:created_at 2021_09_16, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_25;)
References
Metadata
created at2021_09_16
confidenceMedium
signature severityMinor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2021_10_25
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