Anti-Malware Research

Bitdefender sports new feature in wake of Obad trojan

Bitdefender has introduced a new feature in its mobile security offering, following the discovery of the Obad trojan, which takes device admin privileges but afterwards won’t let go. Obad has been called the most complex Android trojan to date and, indeed, according to Bitdefender researchers even discovering how it works was a bit of a challenge, requiring some “brainstorming” on the part of the analysis team.

The code is highly obfuscated, way more so than what we’ve seen with other Android trojans to date.


However the biggest problem the team faced was removal – Obad was using a previously unknown vulnerability to avoid relinquishing device admin status. In the end, Bitdefender developed and added code which makes possible the removal of any third party app.

Fortunately, Obad trojan was not spread using Google’s software market, but is present in some third-party public markets. In the past 30 days, most Obad instances were detected and cleaned by Bitdefender sofware in the Phillipines, China and India.

About the author



Razvan Stoica is a journalist turned teacher turned publicist and technology evangelist. When Bitdefender isn't paying him to bring complex subjects to wide audiences, he enjoys writing fiction, skiing and biking. Razvan Stoica started off writing for a science monthly and was the chief editor of a science fiction magazine for a short while before moving on to the University of Medicine in Bucharest where he lectured on the English language. Recruited by Bitdefender in 2004 to add zest to the company's online presence, he has fulfilled a bevy of roles within the company since. In his current position, he is primarily responsible for the communications and community-building efforts of the Bitdefender research and technology development arm.


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