""ET INFO Suspicious Request to Image with User-Agent Ending in .exe""
SID: 2030732
Revision: 2
Class Type: misc-activity
Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2020_08_25, deployment Perimeter, signature_severity Informational, updated_at 2020_08_25
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
- Value: ".exe|0d 0a|"
Within:
PCRE: "/^User-Agent\x3a\x20[^\r\n]+.exe$/Hmi"
Special Options:
-
http_header
-
fast_pattern