""ET TROJAN MedusaHTTP Variant CnC Checkin""
SID: 2027861
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_08_13, deployment Perimeter, malware_family MedusaHTTP, performance_impact Moderate, signature_severity Major, updated_at 2019_08_13
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "POST"
-
Value: ".jsp"
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Value: "User-Agent|3a 20|Mozilla/5.0 (X11|3b 20|Ubuntu|3b 20|Linux i686|3b 20|rv|3a|45.0) Gecko/20100101 Firefox/45.0|0d 0a|"
-
Value: "abc=" Depth: 4
Within:
PCRE: "/^abc=[a-z0-9/%=]{100,}$/Psi"
Special Options:
-
http_method
-
http_uri
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http_header
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http_client_body