Adversaries may use trusted scripts, often signed with certificates, to proxy the execution of malicious files. Several Microsoft signed scripts that have been downloaded from Microsoft or are default on Windows installations can be used to proxy execution of other files.[1] This behavior may be abused by adversaries to execute malicious files that could bypass application control and signature validation on systems.[2]
References
- Oddvar Moe et al. (2022, February). Living Off The Land Binaries, Scripts and Libraries. Retrieved March 7, 2022.
- Moe, O. (2018, March 1). Ultimate AppLocker Bypass List. Retrieved April 10, 2018.
Dílčí úkoly
| Název | Popis |
|---|---|
| PubPrn | Adversaries may use PubPrn to proxy execution of malicious remote files. PubPrn.vbs is a Visual Basic script that publishes a printer to Active Directory Domain Services. The script may be signed by Microsoft and is commonly executed through the Windows Command Shell via Adversaries may abuse PubPrn to execute malicious payloads hosted on remote sites.[2] To do so, adversaries may set the second In later versions of Windows (10+), References |
| SyncAppvPublishingServer | Adversaries may abuse SyncAppvPublishingServer.vbs to proxy execution of malicious PowerShell commands. SyncAppvPublishingServer.vbs is a Visual Basic script associated with how Windows virtualizes applications (Microsoft Application Virtualization, or App-V).[1] For example, Windows may render Win32 applications to users as virtual applications, allowing users to launch and interact with them as if they were installed locally.[2],[3] The SyncAppvPublishingServer.vbs script is legitimate, may be signed by Microsoft, and is commonly executed from Adversaries may abuse SyncAppvPublishingServer.vbs to bypass PowerShell execution restrictions and evade defensive counter measures by "living off the land."[6],[4] Proxying execution may function as a trusted/signed alternative to directly invoking For example, PowerShell commands may be invoked using:[5]
References
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Propojené úkoly
- MITREATTACK -
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