""ET TROJAN Observed Malware Delivery Related Domain (snap-guide-leeds-des .trycloudflare .com in TLS SNI)""

SID: 2052738

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2024_05_17, deployment Perimeter, signature_severity Major, updated_at 2024_05_23

Reference:

• Link

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 443

Flow: established,to_server

Contents:

• Value: "|16|"

• Value: "|01|"

• Value: "|00 00|"

• Value: "|00|"

• Value: "snap-guide-leeds-des.trycloudflare.com"

Within: 1

PCRE: "/^(?:\x00\x26|.\x2e)snap-guide-leeds-des.trycloudflare.com/R"

Special Options:

source