Brambul

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Brambul
Common nameBrambul
Technical name
TypeComputer worm
Author(s)Lazarus
Operating system(s) affectedWindows XP
Written inKorean

Brambul is an SMB protocol computer worm that decrypts[clarification needed] and automatically moves from one computer to its second computer.

It is responsible for the dropping of the Joanap botnet.

History[edit]

Brambul was first discovered in 2009 and has not had a disclosure prior to its notoriety. It was observed by cybersecurity firms and was not extensive subject.[4]

Sony hack (Late 2014)[edit]

Brambul was among the malware to be identified during the Sony Pictures hack.

Investigation (Early 2019)[edit]

Brambul as well as Joanap botnet have both been shut down via a court order.

Cycle[edit]

The computer worm has the ability to automatically scan IP addresses and decrypt passwords including, but not limited to the following.[5]

Password Description
password The word password
!@#$% 1-5 typed with the shift key
!@#$%^&*() all ten number keys typed with the shift key
~!@#$%^&*()_+ the entire top row of keys typed with the shift key

System drive share[edit]

Brambul will share information of the system to the cyberattacker. Information shared includes the IP address, hostname and the username and password.[6]

References[edit]

  1. ^ https://www.symantec.com/security-center/writeup/2015-051114-3802-99
  2. ^ https://www.microsoft.com/en-us/wdsi/threats/malware-encyclopedia-description?name=win32%2Fbrambul
  3. ^ https://www.microsoft.com/en-us/wdsi/threats/malware-encyclopedia-description?Name=Trojan:Win32/Brambul.A
  4. ^ "Hidden Cobra Strikes Again with Custom RAT, SMB Malware". threatpost.com.
  5. ^ "W32.Brambul | Symantec". www.symantec.com.
  6. ^ at 01:58, Simon Sharwood 30 May 2018. "FBI fingers North Korea for two malware strains". www.theregister.co.uk.

External links[edit]

HIDDEN COBRA – Joanap Backdoor Trojan and Brambul Server Message Block Worm | CISA