""ET TROJAN APT29/WellMess CnC Activity""
SID: 2030534
Revision: 3
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Linux, attack_target Client_Endpoint, created_at 2020_07_16, deployment Perimeter, malware_family WellMess, signature_severity Major, updated_at 2020_09_16
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "+++|0d 0a|"
-
Value: "POST"
-
Value: "+++"
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Value: !"Referer|3a|"
Within:
PCRE: "/^(?:[\x3a\x2c\x2e]?[A-Za-z0-9]{1,8}[\x3a\x2c\x2e]?[\x3a\x2c\x2e]?\s*){50,}$/Psi"
Special Options:
-
fast_pattern
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http_method
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http_cookie
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http_header