""ET TROJAN Fodcha Botnet Style DNS Server Lookup""
SID: 2039783
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2022_11_15, deployment Perimeter, malware_family Fodcha, signature_severity Major, updated_at 2022_11_15
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "Host|3a 20|1.1.1.1|0d 0a|"
-
Value: "GET /geoip/?res=10&r HTTP/1.1"
Within:
PCRE: "/^Host[^\r\n]+\r\nConnection[^\r\n]+\r\n\r\n$/Hm"
Special Options:
-
http_header
-
fast_pattern