""ET TROJAN Potential GCleaner CnC Checkin""
SID: 2044034
Revision: 4
Class Type: trojan-activity
Metadata: attack_target Client_and_Server, created_at 2023_01_31, deployment Perimeter, malware_family GCleaner, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2023_08_18, reviewed_at 2023_08_21
Reference:
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md5
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1f5428d10a51b1247cd0b2565d709264
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "GET"
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Value: "|2f|advertisting|2f|plus|2e|php|3f|s|3d|NOSUB"
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Value: "str|3d|"
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Value: "substr|3d|"
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Value: "User-Agent|3a 20|OK|0d 0a|"
Within:
PCRE: "/Accept\x3a\x20[^\r\n]+\r\nAccept|2d|Language\x3a\x20[^\r\n]+\r\nAccept|2d|Charset\x3a\x20[^\r\n]+\r\nAccept|2d|Encoding\x3a\x20[^\r\n]+\r\nUser|2d|Agent\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+\r\nCache|2d|Control\x3a\x20[^\r\n]+[\r\n]+$/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_uri
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http_uri