""ET INFO Encrypted Messaging Service in DNS Lookup (getsession .org)""
SID: 2050812
Revision: 1
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2024_02_13, deployment Perimeter, signature_severity Informational, updated_at 2024_02_13, reviewed_at 2024_03_19
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: "|0a|getsession|03|org|00|"
Within: 7
PCRE:
Special Options:
-
fast_pattern
-
nocase