File Download And Execution Via IEExec.EXE

calendar Aug 12, 2024 · attack.command-and-control attack.t1105  ·
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Detects execution of the IEExec utility to download and execute files

Sigma rule (View on GitHub)

 1title: File Download And Execution Via IEExec.EXE
 2id: 9801abb8-e297-4dbf-9fbd-57dde0e830ad
 3status: test
 4description: Detects execution of the IEExec utility to download and execute files
 5references:
 6    - https://lolbas-project.github.io/lolbas/Binaries/Ieexec/
 7author: Nasreddine Bencherchali (Nextron Systems)
 8date: 2022-05-16
 9modified: 2023-11-09
10tags:
11    - attack.command-and-control
12    - attack.t1105
13logsource:
14    category: process_creation
15    product: windows
16detection:
17    selection_img:
18        - Image|endswith: '\IEExec.exe'
19        - OriginalFileName: 'IEExec.exe'
20    selection_cli:
21        CommandLine|contains:
22            - 'http://'
23            - 'https://'
24    condition: all of selection_*
25falsepositives:
26    - Unknown
27level: high

References

  • Ieexec on LOLBAS

    Ieexec.exe is a living-of-the-land file containing unexpected functionality that can be abused by attackers; this page lists all its use cases.


    Read More

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