""ET POLICY Observed DNS Query to File Transfer Service Domain (transfer .sh)""
SID: 2034316
Revision: 1
Class Type: bad-unknown
Metadata: attack_target Client_Endpoint, created_at 2021_11_01, deployment Perimeter, signature_severity Informational, updated_at 2021_11_01
Reference:
Protocol: udp
Source Network: $HOME_NET
Source Port: any
Destination Network: any
Destination Port: 53
Flow:
Contents:
-
Value: "|01|" Depth: 1 Offset: 2
-
Value: "|00 01 00 00 00 00 00|"
-
Value: "|08|transfer|02|sh"
Within: 7
PCRE:
Special Options:
- nocase