ET DELETED SMTP US Secret NOFORN

SID: 2002442Rev: 30 views
History
Sourceet/open
CreatedJuly 30, 2010
UpdatedJuly 26, 2019
Classificationpolicy-violation
alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET DELETED SMTP US Secret NOFORN"; flow:to_server,established; content:"Subject|3A|"; pcre:"/(?<!TOP\s|T)(SECRET|S)//[\s\w,/-]*NOFORN[\s\w,/-]*(?=//(25)?X[1-9])/ism"; classtype:policy-violation; sid:2002442; rev:3; metadata:created_at 2010_07_30, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)

Metadata

created at2010_07_30
signature severityUnknown
tagDescription_Generated_By_Proofpoint_Nexus
updated at2019_07_26

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