""ET TROJAN Possible APT Sarhurst/Husar/Hussarini/Hassar CnC GET""
SID: 2027710
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 2019_07_15, deployment Perimeter, signature_severity Major, updated_at 2019_07_15
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: to_server,established
Contents:
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Value: "GET"
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Value: "/?" Depth: 2
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Value: "AAAAAAAAAA"
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Value: "Accept|3a 20|Accept|3a|/|0d 0a|" Depth: 20
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Value: "User-Agent|3a 20|Mozilla/4.0 (compatible|3b 20|MSIE 5.5|3b 20|Windows NT 5.0)"
Within:
PCRE: "/^\/\?(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/U"
Special Options:
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http_method
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http_uri
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http_uri
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http_header
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fast_pattern
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http_header