""ET TROJAN Win32/TrojanDownloader.Agent.FC CnC Activity""
SID: 2030678
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_08_12, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2020_08_12
Reference:
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md5
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d8dbaecab080b40e7782b10affb630f4
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "POST /loader/gate HTTP/1.0|0d 0a|Host|3a 20|"
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Value: "User-Agent|3a 20|"
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Value: "Referer|3a 20|"
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Value: "data=" Depth: 5
Within:
PCRE: "/^data=(?:[a-zA-Z0-9+/]{4})*(?:[a-zA-Z0-9+/]{2}==|[a-zA-Z0-9+/]{3}=|[a-zA-Z0-9+/]{4})$/P"
Special Options:
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fast_pattern
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http_header
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http_client_body