SigmaHQ/rules/windows/process_creation/win_susp_rpcping.yml
2021-07-01 12:18:30 +05:45

42 lines
1.3 KiB
YAML

title: Capture Credentials with Rpcping.exe
id: 93671f99-04eb-4ab4-a161-70d446a84003
description: Detects using Rpcping.exe to send a RPC test connection to the target server (-s) and force the NTLM hash to be sent in the process.
status: experimental
references:
- https://lolbas-project.github.io/lolbas/Binaries/Rpcping/
- https://twitter.com/vysecurity/status/974806438316072960
- https://twitter.com/vysecurity/status/873181705024266241
- https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/hh875578(v=ws.11)
author: Julia Fomina, oscd.community
date: 2020/10/09
tags:
- attack.credential_access
- attack.t1003
logsource:
category: process_creation
product: windows
detection:
use_rpcping:
Image|endswith: '\rpcping.exe'
remote_server:
CommandLine|contains:
- '-s'
- '/s'
ntlm_auth:
- CommandLine|contains|all:
- '-u'
- 'NTLM'
- CommandLine|contains|all:
- '/u'
- 'NTLM'
- CommandLine|contains|all:
- '-t'
- 'ncacn_np'
- CommandLine|contains|all:
- '/t'
- 'ncacn_np'
condition: use_rpcping and remote_server and ntlm_auth
level: medium
falsepositives:
- Unlikely