SigmaHQ/rules/proxy/proxy_raw_paste_service_access.yml
2020-09-15 07:02:30 -06:00

34 lines
1.0 KiB
YAML

title: Raw Paste Service Access
id: 5468045b-4fcc-4d1a-973c-c9c9578edacb
status: experimental
description: Detects direct access to raw pastes in different paste services often used by malware in their second stages to download malicious code in encrypted or encoded form
author: Florian Roth
date: 2019/12/05
modified: 2020/09/03
references:
- https://www.virustotal.com/gui/domain/paste.ee/relations
logsource:
category: proxy
detection:
selection:
c-uri|contains:
- '.paste.ee/r/'
- '.pastebin.com/raw/'
- '.hastebin.com/raw/'
- '.ghostbin.co/paste/*/raw/'
condition: selection
fields:
- ClientIP
- c-uri
- c-useragent
falsepositives:
- User activity (e.g. developer that shared and copied code snippets and used the raw link instead of just copy & paste)
level: high
tags:
- attack.command_and_control
- attack.t1071.001
- attack.t1043 # an old one
- attack.t1102.001
- attack.t1102.003
- attack.defense_evasion
- attack.t1102 # an old one