Vulcanbot is the name of a botnet

Botnet

A botnet is a collection of compromised computers connected to the Internet. Termed "bots," they are generally used for malicious purposes. When a computer becomes compromised, it becomes a part of a botnet...

 predominantly spread in Vietnam

Vietnam

Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

. The botnet began to spread after the website of the Vietnamese Professionals Society

Vietnamese Professionals Society

The Vietnamese Professionals Society is a non-profit worldwide membership organization of Vietnamese professionals of various technical, economic, medical, legal field. Its mission is to increase the knowledge and understanding of the social and economic conditions in Vietnam, to promote the...

 (vps.org) was hacked and the legitimate Vietnamese keyboard driver (VPSKeys

VPSKeys

VPSKeys is a freeware input method editor developed and distributed by the Vietnamese Professionals Society . One of the first input method editors for Vietnamese, it allows users to add accent marks to Vietnamese text on computers running Microsoft Windows. The first version of VPSKeys, supporting...

) hosted on the site was replaced with backdoor

Backdoor

A backdoor in a computer system is a method of bypassing normal authentication, securing remote access to a computer, obtaining access to plaintext, and so on, while attempting to remain undetected...

ed version. Google

Google

Google Inc. is an American multinational public corporation invested in Internet search, cloud computing, and advertising technologies. Google hosts and develops a number of Internet-based services and products, and generates profit primarily from advertising through its AdWords program...

 posted on its blog that it believed the botnet thus created was used predominantly to DDoS blogger

Blog

A blog is a type of website or part of a website supposed to be updated with new content from time to time. Blogs are usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in...

s critical of the bauxite

Bauxite

Bauxite is an aluminium ore and is the main source of aluminium. This form of rock consists mostly of the minerals gibbsite Al3, boehmite γ-AlO, and diaspore α-AlO, in a mixture with the two iron oxides goethite and hematite, the clay mineral kaolinite, and small amounts of anatase TiO2...

mining in Vietnam, thus making it a politically motivated attack.