title: Chafer Malware URL Pattern
id: fb502828-2db0-438e-93e6-801c7548686d
status: test
description: Detects HTTP requests used by Chafer malware
references:
    - https://securelist.com/chafer-used-remexi-malware/89538/
author: Florian Roth
date: 2019/01/31
modified: 2022/08/15
tags:
    - attack.command_and_control
    - attack.t1071.001
logsource:
    category: proxy
detection:
    selection:
        c-uri|contains: '/asp.asp\?ui='
    condition: selection
fields:
    - ClientIP
    - c-uri
    - c-useragent
falsepositives:
    - Unknown
level: critical