ET HUNTING SUSPICIOUS SMTP EXE - RAR file with .exe filename inside
Sourceet/open
CreatedDecember 20, 2013
UpdatedJuly 26, 2019
Classificationbad-unknown
alert smtp $EXTERNAL_NET any -> $SMTP_SERVERS any (msg:"ET HUNTING SUSPICIOUS SMTP EXE - RAR file with .exe filename inside"; flow:established; content:"|0D 0A 0D 0A|UmFyI"; pcre:"/^[A-Za-z0-9\/\+\x0D\x0A]+?(5leG|LmV4|uZXhl)/R"; classtype:bad-unknown; sid:2017885; rev:5; metadata:created_at 2013_12_20, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)
Metadata
created at2013_12_20
confidenceMedium
signature severityInformational
tagDescription_Generated_By_Proofpoint_Nexus
updated at2019_07_26
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