Renamed Plink Execution

 1title: Renamed Plink Execution
 2id: 1c12727d-02bf-45ff-a9f3-d49806a3cf43
 3status: test
 4description: Detects the execution of a renamed version of the Plink binary
 5references:
 6    - https://thedfirreport.com/2022/06/06/will-the-real-msiexec-please-stand-up-exploit-leads-to-data-exfiltration/
 7    - https://the.earth.li/~sgtatham/putty/0.58/htmldoc/Chapter7.html
 8author: Nasreddine Bencherchali (Nextron Systems)
 9date: 2022-06-06
10modified: 2023-02-03
11tags:
12    - attack.defense-evasion
13    - attack.t1036
14logsource:
15    category: process_creation
16    product: windows
17detection:
18    selection:
19        - OriginalFileName: 'Plink'
20        - CommandLine|contains|all:
21              - ' -l forward'
22              - ' -P '
23              - ' -R '
24    filter:
25        Image|endswith: '\plink.exe'
26    condition: selection and not filter
27falsepositives:
28    - Unknown
29level: high

References

• Will the Real Msiexec Please Stand Up? Exploit Leads to Data Exfiltration

  

  In this multi-day intrusion, we observed a threat actor gain initial access to an organization by exploiting a vulnerability in ManageEngine SupportCenter Plus. The threat actor, discovered files o…

  
  Read More

• Using the command-line connection tool Plink

  Previous | Contents | Index | Next Chapter 7: Using the command-line connection tool Plink Plink (PuTTY Link) is a command-line connection tool similar to UNIX ssh. It is mostly used for automated ...

  
  Read More

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