ET HUNTING Observed ConnectWise ScreenConnect SSL Certificate
Sourceet/open
CreatedJune 23, 2025
UpdatedJune 24, 2025
Classificationmisc-activity
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Observed ConnectWise ScreenConnect SSL Certificate"; flow:established,to_client; tls.cert_serial; content:"03:58:28:B5:82:D8:C0:A1:93:C4:BA:3C:5D:CF:10:11"; classtype:misc-activity; sid:2063134; rev:3; metadata:attack_target Client_Endpoint, created_at 2025_06_23, deployment Perimeter, confidence High, signature_severity Informational, tag SSL_Malicious_Cert, tag Generated_by_Proofpoint_Nexus, updated_at 2025_06_24;)
Metadata
attack targetClient_Endpoint
created at2025_06_23
deploymentPerimeter
confidenceHigh
signature severityInformational
tagGenerated_by_Proofpoint_Nexus
updated at2025_06_24
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