""ET INFO Request to .GQ Domain with Minimal Headers""
SID: 2031093
Revision: 3
Class Type: bad-unknown
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_10_23, deployment Perimeter, performance_impact Significant, signature_severity Major, updated_at 2024_04_05
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
- Value: ".gq|0d 0a|"
Within:
PCRE: "/^Host\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+[\r\n]+$/Hi"
Special Options:
-
http_header
-
fast_pattern