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HackTool - RemoteKrbRelay SMB Relay Secrets Dump Module Indicators

Detects the creation of file with specific names used by RemoteKrbRelay SMB Relay attack module.

MITRE ATT&CK

command-and-control

Detection Query

selection:
  TargetFilename|endswith:
    - :\windows\temp\sam.tmp
    - :\windows\temp\sec.tmp
    - :\windows\temp\sys.tmp
condition: selection

Author

Nasreddine Bencherchali (Nextron Systems)

Created

2024-06-27

Data Sources

windowsFile Events

Platforms

windows

References

https://github.com/CICADA8-Research/RemoteKrbRelay/blob/19ec76ba7aa50c2722b23359bc4541c0a9b2611c/Exploit/RemoteKrbRelay/Relay/Attacks/RemoteRegistry.cs#L31-L40

Tags

attack.command-and-controlattack.t1219.002

Raw Content

title: HackTool - RemoteKrbRelay SMB Relay Secrets Dump Module Indicators
id: 3ab79e90-9fab-4cdf-a7b2-6522bc742adb
status: test
description: Detects the creation of file with specific names used by RemoteKrbRelay SMB Relay attack module.
references:
    - https://github.com/CICADA8-Research/RemoteKrbRelay/blob/19ec76ba7aa50c2722b23359bc4541c0a9b2611c/Exploit/RemoteKrbRelay/Relay/Attacks/RemoteRegistry.cs#L31-L40
author: Nasreddine Bencherchali (Nextron Systems)
date: 2024-06-27
tags:
    - attack.command-and-control
    - attack.t1219.002
logsource:
    product: windows
    category: file_event
detection:
    selection:
        TargetFilename|endswith:
            - ':\windows\temp\sam.tmp'
            - ':\windows\temp\sec.tmp'
            - ':\windows\temp\sys.tmp'
    condition: selection
falsepositives:
    - Unlikely
level: high