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Desiree Beck 6ce7ebadf2 Malware types (#140 )

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added link to malware type table.

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* Newsletter, editing E1510, E1560 (#137) (#138)

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* Update e1510 (#134)

* Update clipboard-modification.md

Update to account for updates to T1115.

* Update data-encrypted-for-impact.md

fix parentheses

* Update clipboard-modification.md

* Update data-encrypted-for-impact.md

* Update clipboard-modification.md

* Moving Archive Collected Data to collection, some description updates

* Updating Last Modified

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Co-authored-by: Ryan Xu <ryanxu@wustl.edu>

* Newsletter, editing E1510, E1560 (#137) (#139)

* Adding Newsletter

* Create 12182023.md

* Update README.md

---------



* Update e1510 (#134)

* Update clipboard-modification.md

Update to account for updates to T1115.

* Update data-encrypted-for-impact.md

fix parentheses

* Update clipboard-modification.md

* Update data-encrypted-for-impact.md

* Update clipboard-modification.md

* Moving Archive Collected Data to collection, some description updates

* Updating Last Modified

---------

Co-authored-by: Ryan Xu <ryanxu@wustl.edu>

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Co-authored-by: Ryan Xu <ryanxu@wustl.edu>

2023-12-20 21:54:25 -05:00

3.7 KiB

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ID	X0013
Type	Bootkit
Aliases	None
Platforms	Windows
Year	2011
Associated ATT&CK Software	Mebromi

Mebromi

A BIOS bootkit.

ATT&CK Techniques

Name	Use
Discovery::Process Discovery (T1057)	Mebromi enumerates processes. [2]
Discovery::System Service Discovery (T1007)	Mebromi queries a service status. [2]
Execution::Shared Modules (T1129)	Mebromi links functions at runtime on Windows. [2]
Execution::System Services::Service Execution (T1569.002)	Mebromi interacts with a driver via control codes. [2]
Impact::Service Stop (T1489)	Mebromi stops services. [2]
Persistence::Create or Modify System Process::Windows Service (T1543.003)	Mebromi starts services. [2]

See ATT&CK: Mebromi - Techniques Used.

Enhanced ATT&CK Techniques

Name	Use
Defense Evasion::Bootkit (F0013)	An MBR bootkit and a BIOS bootkit targeting Award BIOS. [1]
Defense Evasion::Obfuscated Files or Information::Encoding-Standard Algorithm (E1027.m02)	Mebromi encodes data using XOR. [2]
Discovery::File and Directory Discovery (E1083)	Mebromi gets a file size. [2]
Discovery::System Information Discovery (E1082)	Mebromi checks OS version. [2]
Execution::Command and Scripting Interpreter (E1059)	Mebromi accepts command line arguments. [2]

MBC Behaviors

Name	Use
Execution::Conditional Execution (B0025)	Malware only proceeds if it detects the BIOS ROM is Award BIOS. [1]
Execution::Install Additional Program (B0023)	Malware contains a dropper that installs additional programs like Cbrom.exe. [1]
Data::Encode Data::XOR (C0026.002)	Mebromi encodes data using XOR. [2]
File System::Copy File (C0045)	Mebromi copies files. [2]
File System::Delete File (C0047)	Mebromi deletes files. [2]
File System::Move File (C0063)	Mebromi moves files. [2]
File System::Read File (C0051)	Mebromi reads files on Windows. [2]
Memory::Allocate Memory (C0007)	Mebromi allocates RWX memory. [2]
Process::Create Process (C0017)	Mebromi creates a process on Windows. [2]

Indicators of Compromise

SHA256 Hashes

4968ae59a46b60c290cf5db8b3d6749df06ceb4be668009a609e1139fe91a9ee
8802ad7f2d267b754afef8fd81fe8e5f0ecc13e7f69b82e89e980922d94291ba

References

[1] https://www.webroot.com/blog/2011/09/13/mebromi-the-first-bios-rootkit-in-the-wild/

[2] capa v4.0, analyzed at MITRE on 10/12/2022

3.7 KiB Raw Permalink Blame History