This Android botnet relies on Twitter for its commands

The malware's developer is substituting Twitter accounts for a control server

Twitter users aren’t the only ones checking the microblogging service for important updates. Android malware is starting to do so, too.

One maker of Android malware is using Twitter to communicate with infected smartphones, according to security firm ESET.

The company discovered the feature in a malicious app called Android/Twitoor. It runs as a backdoor virus that can secretly install other malware on a phone.

Typically, the makers of Android malware control their infected smartphones from servers. Commands sent from those servers can create a botnet of compromised phones and tell the malware on all the phones what to do.

The makers of Android/Twitoor decided to use Twitter instead of servers to communicate with the infected phones. The malware routinely checks certain Twitter accounts and reads the encrypted posts to get its operating commands.

Lukas Stefanko, an ESET researcher, said in a Wednesday blog post that this was an innovative approach.  It removes the need to maintain a command and control server, and the communications with the Twitter accounts can be hard to discover.

“It’s extremely easy for the crooks to re-direct communications to another freshly created account,” he said.

ESET said this was first Twitter-controlled Android botnet it had ever found. Windows-based botnets using Twitter have been around since at least 2009.

ESET said Android/Twitoor hasn’t been detected in any app stores, so it probably spreads through malicious links sent to the victim. The malware pretends to be a porn player or multimedia messaging app, and it’s only been active for about a month.

So far, Android/Twitoor has been found downloading versions of mobile banking malware to users’ phones.

“In the future, we can expect that the bad guys will try to make use of Facebook statuses or deploy LinkedIn and other social networks,” Stefanko added.

Join the PC World newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Michael Kan

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Matthew Stivala

HP OfficeJet 250 Mobile Printer

The HP OfficeJet 250 Mobile Printer is a great device that fits perfectly into my fast paced and mobile lifestyle. My first impression of the printer itself was how incredibly compact and sleek the device was.

Armand Abogado

HP OfficeJet 250 Mobile Printer

Wireless printing from my iPhone was also a handy feature, the whole experience was quick and seamless with no setup requirements - accessed through the default iOS printing menu options.

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?