""ET TROJAN FF-RAT Stage 1 CnC Checkin""
SID: 2024419
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 2017_06_22, deployment Perimeter, performance_impact Moderate, signature_severity Major, updated_at 2017_06_22
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: any
Flow: to_server,established
Contents:
-
Value: "POST|20|/" Depth: 6
-
Value: ".php?hdr_ctx="
-
Value: "|0d 0a|User-Agent|3a 20|Mozilla/5.0|0d 0a|"
-
Value: !"Referer|3a|"
Within: 100
PCRE: "/^[0-9]{1,5}_[0-9]{1,5}\x20HTTP\/1.1\x0d\x0a/R"
Special Options:
- fast_pattern