""ET INFO DYNAMIC_DNS HTTP Request to a *.img .com .ar Domain""
SID: 2039959
Revision: 2
Class Type: bad-unknown
Metadata: attack_target Client_and_Server, created_at 2022_11_28, deployment Perimeter, performance_impact Low, signature_severity Informational, updated_at 2023_03_02, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1568, mitre_technique_name Dynamic_Resolution
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
- Value: ".img.com.ar|0d 0a|"
Within:
PCRE: "/^Host\x3a\x20[^\r\n]+.img.com.ar[\r\n]+$/Hmi"
Special Options:
-
http_header
-
fast_pattern