""ET TROJAN Fbot Blockchain Based CnC DNS Lookup (musl .lib)""
SID: 2026323
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Linux, attack_target Server, created_at 2018_09_20, deployment Perimeter, malware_family Satori, malware_family Fbot, performance_impact Low, signature_severity Major, tag Worm, tag DDoS, updated_at 2018_09_20
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: "|04|musl|03|lib|00|"
Within: 7
PCRE:
Special Options:
-
fast_pattern
-
nocase