Network Connection Initiated By IMEWDBLD.EXE

Detects a network connection initiated by IMEWDBLD.EXE. This might indicate potential abuse of the utility as a LOLBIN in order to download arbitrary files or additional payloads.

Sigma rule (View on GitHub)

 1title: Network Connection Initiated By IMEWDBLD.EXE
 2id: 8d7e392e-9b28-49e1-831d-5949c6281228
 3related:
 4    - id: 863218bd-c7d0-4c52-80cd-0a96c09f54af
 5      type: derived
 6status: test
 7description: |
 8        Detects a network connection initiated by IMEWDBLD.EXE. This might indicate potential abuse of the utility as a LOLBIN in order to download arbitrary files or additional payloads.
 9references:
10    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1105/T1105.md#atomic-test-10---windows---powershell-download
11    - https://lolbas-project.github.io/lolbas/Binaries/IMEWDBLD/
12author: frack113
13date: 2022-01-22
14modified: 2023-11-09
15tags:
16    - attack.command-and-control
17    - attack.t1105
18logsource:
19    category: network_connection
20    product: windows
21detection:
22    selection:
23        Initiated: 'true'
24        Image|endswith: '\IMEWDBLD.exe'
25    condition: selection
26falsepositives:
27    - Unknown
28# Note: Please reduce this to medium if you find legitimate connections
29level: high

References

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