""ET TROJAN Cryptbot CnC DGA Domain (for4)""
SID: 2054385
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, tls_state plaintext, created_at 2024_07_08, deployment Perimeter, malware_family Cryptbot, confidence High, signature_severity Major, updated_at 2024_07_08
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: "for4"
Within: 7
PCRE: "/(?:[a-z]{2})for4(?:[a-z]{2})\x03top/"
Special Options:
-
fast_pattern
-
nocase