""ET TROJAN TEMP.Periscope APT Domain in DNS Lookup""
SID: 2026612
Revision: 3
Class Type: trojan-activity
Metadata: attack_target Client_and_Server, created_at 2018_11_15, deployment Perimeter, performance_impact Low, signature_severity Major, tag DragonFly, updated_at 2018_11_16
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: "|1a|thyssenkrupp-marinesystems|03|org|00|"
Within: 7
PCRE:
Special Options:
-
fast_pattern
-
nocase