From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Common nameBrambul
Technical name
TypeComputer worm
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.


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.


The computer worm has the ability to automatically scan IP addresses and decrypt passwords including, but not limited to the following.[1]

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.[5]


  1. ^ a b "W32.Brambul | Symantec".
  2. ^ "Win32/Brambul threat description - Microsoft Security Intelligence".
  3. ^ "Trojan:Win32/Brambul.A threat description - Microsoft Security Intelligence".
  4. ^ "Hidden Cobra Strikes Again with Custom RAT, SMB Malware".
  5. ^ at 01:58, Simon Sharwood 30 May 2018. "FBI fingers North Korea for two malware strains".

External links[edit]