ET HUNTING SUSPICIOUS SMTP Attachment Inbound PPT attachment with Embedded OLE Object M2
Sourceet/open
CreatedOctober 15, 2014
UpdatedJuly 26, 2019
Classificationmisc-activity
alert smtp $EXTERNAL_NET any -> $SMTP_SERVERS any (msg:"ET HUNTING SUSPICIOUS SMTP Attachment Inbound PPT attachment with Embedded OLE Object M2"; flow:established,to_server; content:"|0D 0A 0D 0A|UEsDB"; pcre:"/^[A-Za-z0-9\/\+\x0D\x0A]+?c[\x0d\x0a]{0,2}H[\x0d\x0a]{0,2}B[\x0d\x0a]{0,2}0[\x0d\x0a]{0,2}L[\x0d\x0a]{0,2}2[\x0d\x0a]{0,2}V[\x0d\x0a]{0,2}t[\x0d\x0a]{0,2}Y[\x0d\x0a]{0,2}m[\x0d\x0a]{0,2}V[\x0d\x0a]{0,2}k[\x0d\x0a]{0,2}Z[\x0d\x0a]{0,2}G[\x0d\x0a]{0,2}l[\x0d\x0a]{0,2}u[\x0d\x0a]{0,2}Z[\x0d\x0a]{0,2}3[\x0d\x0a]{0,2}M[\x0d\x0a]{0,2}v[\x0d\x0a]{0,2}b[\x0d\x0a]{0,2}2[\x0d\x0a]{0,2}x[\x0d\x0a]{0,2}l[\x0d\x0a]{0,2}T[\x0d\x0a]{0,2}2[\x0d\x0a]{0,2}J[\x0d\x0a]{0,2}q[\x0d\x0a]{0,2}Z[\x0d\x0a]{0,2}W[\x0d\x0a]{0,2}N[\x0d\x0a]{0,2}0/R"; classtype:misc-activity; sid:2019407; rev:2; metadata:created_at 2014_10_15, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)
Metadata
created at2014_10_15
confidenceMedium
signature severityMinor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2019_07_26
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