ET MALWARE Base64 Encoded Windows Command Prompt (Outbound)
Sourceet/open
CreatedJune 16, 2022
UpdatedJune 16, 2022
Classificationcommand-and-control
alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Base64 Encoded Windows Command Prompt (Outbound)"; flow:established,to_server; content:"TWljcm9zb2Z0IFdpbmRvd3MgW1ZlcnNpb24"; fast_pattern; pcre:"/(?:TWljcm9zb2Z0IENvcnBvcmF0aW9uL|1pY3Jvc29mdCBDb3Jwb3JhdGlvbi|NaWNyb3NvZnQgQ29ycG9yYXRpb24u)[a-zA-Z0-9\x2f\x2b]{25,35}(?:Cg0KQzpc|oNCkM6XD|KDQpDOlw\x2b)/R"; reference:url,twitter.com/RedDrip7/status/1537389704374431744; reference:md5,29b6b195cf0671901b75b7d2ac6814f6; classtype:command-and-control; sid:2037018; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_06_16, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_16;)
References
| url | twitter.com/RedDrip7/status/1537389704374431744 |
| md5 | 29b6b195cf0671901b75b7d2ac6814f6 |
Metadata
attack targetClient_Endpoint
created at2022_06_16
deploymentPerimeter
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2022_06_16
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