ET HUNTING SUSPICIOUS PSHELL Downloader Primitives B641 Oct 19 2017

7.0.35.0SID: 2024878Rev: 3Enabled0 views
Sourceet/open
Fileemerging-hunting.rules
CreatedOctober 20, 2017
UpdatedMarch 14, 2024
Classificationtrojan-activity
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING SUSPICIOUS PSHELL Downloader Primitives B641 Oct 19 2017"; flow:established,to_client; file.data; content:"U3RhcnQtUHJvY2Vzc"; pcre:"/(?:RG93bmxvYWRGaWxl|Rvd25sb2FkRmlsZ|Eb3dubG9hZEZpbG)/"; pcre:"/(?:V3JpdGUtSG9zd|dyaXRlLUhvc3|Xcml0ZS1Ib3N0)/"; pcre:"/U3lzdGVtLk5ldC5XZWJDbGllbn|N5c3RlbS5OZXQuV2ViQ2xpZW50|TeXN0ZW0uTmV0LldlYkNsaWVud/"; classtype:trojan-activity; sid:2024878; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_10_20, deployment Perimeter, malware_family Locky, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2024_03_14;)

Metadata

affected productWindows_XP_Vista_7_8_10_Server_32_64_Bit
attack targetClient_Endpoint
created at2017_10_20
deploymentPerimeter
malware familyLocky
performance impactLow
confidenceMedium
signature severityMajor
updated at2024_03_14

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