""ET TROJAN GCleaner CnC Checkin M1""
SID: 2044031
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2023_01_31, deployment Perimeter, malware_family GCleaner, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_01_31
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "GET"
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Value: "|2f|default|2f|stuk|2e|php"
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Value: "User-Agent|3a 20|OK|0d 0a|"
Within:
PCRE: "/Accept\x3a\x20[^\r\n]+\r\nAccept-Language\x3a\x20[^\r\n]+\r\nAccept-Charset\x3a\x20[^\r\n]+\r\nAccept-Encoding\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+\r\nCache-Control\x3a\x20[^\r\n]+[\r\n]+$/H"
Special Options:
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http_method
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http_uri
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fast_pattern
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http_header