""ET TROJAN Win32/S1deload Stealer CnC Checkin""
SID: 2044359
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_02_27, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_02_27
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "GET"
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Value: "/commonupdate?version=" Depth: 22
-
Value: "&uuid="
Within:
PCRE: "/^Host\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+[\r\n]+$/H"
Special Options:
-
http_method
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http_uri
-
fast_pattern
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http_uri