""ET INFO Observed Public File Sharing Service Domain (bashupload .com in TLS SNI)""

SID: 2050107

Revision: 1

Class Type: misc-activity

Metadata: attack_target Client_Endpoint, created_at 2024_01_17, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2024_01_17, reviewed_at 2024_04_16

Reference:

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 0e|bashupload.com"

Within: 8

PCRE:

Special Options:

  • fast_pattern

source