Potential Exploitation of GoAnywhere MFT Vulnerability

 1title: Potential Exploitation of GoAnywhere MFT Vulnerability
 2id: 6c76b3d0-afe4-4870-9443-ffe6773c5fef
 3status: experimental
 4description: |
 5    Detects suspicious command execution by child processes of the GoAnywhere Managed File Transfer (MFT) application, which may indicate exploitation such as CVE-2025-10035.
 6    This behavior is indicative of post-exploitation activity related to CVE-2025-10035, as observed in campaigns by the threat actor Storm-1175.    
 7references:
 8    - https://www.microsoft.com/en-us/security/blog/2025/10/06/investigating-active-exploitation-of-cve-2025-10035-goanywhere-managed-file-transfer-vulnerability/
 9author: MSFT (idea), Swachchhanda Shrawan Poudel (Nextron Systems)
10date: 2025-10-07
11tags:
12    - attack.initial-access
13    - attack.t1190
14    - attack.execution
15    - attack.t1059.001
16    - attack.persistence
17    - attack.t1133
18    - detection.emerging-threats
19    - cve.2025-10035
20logsource:
21    category: process_creation
22    product: windows
23detection:
24    # Detects the GoAnywhere Tomcat parent process based on path and command line arguments
25    selection_parent:
26        ParentImage|contains: '\GoAnywhere\tomcat\'
27    selection_powershell_img:
28        Image|endswith:
29            - '\powershell.exe'
30            - '\powershell_ise.exe'
31            - '\pwsh.exe'
32    selection_powershell_cmd:
33        - CommandLine|contains|all:
34              - 'IEX'
35              - 'enc'
36              - 'Hidden'
37              - 'bypass'
38        - CommandLine|re:
39              - 'net\s+user'
40              - 'net\s+group'
41              - 'query\s+session'
42        - CommandLine|contains:
43              - 'whoami'
44              - 'systeminfo'
45              - 'dsquery'
46              - 'localgroup administrators'
47              - 'nltest'
48              - 'samaccountname='
49              - 'adscredentials'
50              - 'o365accountconfiguration'
51              - '.DownloadString('
52              - '.DownloadFile('
53              - 'FromBase64String('
54              - 'System.IO.Compression'
55              - 'System.IO.MemoryStream'
56              - 'curl'
57    selection_child_cmd:
58        Image|endswith: '\cmd.exe'
59        CommandLine|contains:
60            - 'powershell'
61            - 'whoami'
62            - 'net.exe'
63            - 'net1.exe'
64            - 'rundll32'
65            - 'quser'
66            - 'nltest'
67            - 'curl'
68    selection_child_others:
69        CommandLine|contains:
70            - 'bitsadmin'
71            - 'certutil'
72            - 'mshta'
73            - 'cscript'
74            - 'wscript'
75    condition: selection_parent and (all of selection_powershell_* or 1 of selection_child_*)
76falsepositives:
77    - Legitimate administrative scripts or built-in GoAnywhere functions could potentially trigger this rule. Tuning may be required based on normal activity in your environment.
78level: high