""ET TROJAN Possible WannaCry DNS Lookup 4""

SID: 2024295

Revision: 4

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_05_16, cve CVE_2017_0144, deployment Perimeter, malware_family wannacry, performance_impact Moderate, signature_severity Critical, tag Ransomware, updated_at 2019_08_28

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: "|29|iuqssfsodp9ifjaposdfjhgosurijfaewrwergwea"

  • Value: "|00|"

Within: 7

PCRE:

Special Options:

  • nocase

  • fast_pattern

source