""ET TROJAN ACR Stealer CnC Checkin Attempt""
SID: 2052674
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_05_16, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_05_16
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "GET"
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Value: "/ujs/" Depth: 5
Within:
PCRE: "/^\/ujs\/[a-f0-9]{8}-(?:[a-f0-9]{4}-){3}[a-f0-9]{12}$/U"
Special Options:
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http_method
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http_uri
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fast_pattern