""ET MOBILE_MALWARE Android/ProxyLib Related Domain (nsignal .net) in TLS SNI""

SID: 2051804

Revision: 1

Class Type: bad-unknown

Metadata: affected_product Android, attack_target Mobile_Client, created_at 2024_03_26, deployment Perimeter, malware_family ProxyLib, performance_impact Low, confidence High, signature_severity Major, tag ProxyLib, updated_at 2024_03_26

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 0b|nsignal.net"

Within: 8

PCRE:

Special Options:

• fast_pattern

source