Removed rule. This rule is known, but it is no longer present in its source. Showing the last known version.Removed: Jul 5, 2026, 4:07 AM

THL Cobalt Strike Stager Download URI /au2U or /msI4 on Port 80

SID: 1900038Rev: 1Enabled6 viewsHistory
Filehunters-ledger.rules
CreatedApril 8, 2026
UpdatedApril 8, 2026
alert http $HOME_NET any -> 172.105.0.126 80 (msg:"THL Cobalt Strike Stager Download URI /au2U or /msI4 on Port 80"; flow:established,to_server; http.method; content:"GET"; http.uri; pcre:"/^\/(?:au2U|msI4)$/U"; sid:1900038; rev:1; metadata:affected_product Windows, attack_target Client_Endpoint, created_at 2026_04_08, deployment Perimeter, performance_impact Low, signature_severity Critical, updated_at 2026_04_08;)

Metadata

affected productWindows
attack targetClient_Endpoint
created at2026_04_08
deploymentPerimeter
performance impactLow
signature severityCritical
updated at2026_04_08

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