Feeds

Chinese mobile users targeted by Trojan

Smart mobile malware

Providing a secure and efficient Helpdesk

Miscreants have created a ransomware Trojan for mobile phones which has been seen in the wild in China. Kiazha-A, attempts to extort money from users of Symbian Series 60 phones.

Infected smartphones display a message saying that victims need to send RMB 50 ($7) to the malware authors in order to regain use of the phone. The message (roughly translated) states: "Warning: Your device has been affected, please prepare a recharge card of RMB 50 yuan and connect QQ[id removed] account, or your phone will be paralysed!!!"

QQ is a popular instant messaging network in China that's become the target of many password stealing Trojans and scams over recent months. The network supports its own currency, called QQ coins, that can be traded.

An analysis by anti-virus firm McAfee has found that Kiazha-A is a component of a sophisticated mobile malware bundle, dubbed MultiDropper-CR. SMS messages on infected devices are controlled by hackers to set up an elaborate scam, McAfee explains. Initial infection is spread via either Bluetooth or tainted MMS messages from other infected devices.

"MultiDropper-CR uses malicious payloads (Beselo, Commwarrior) to convince the user their phone is infected. It also sets up SMS forwarding (SmsSend-G) to collect information and potentially passwords. In case the victim doesn’t have a QQ account the malware will order (SmsSend-F) one for them. After all that, Kiazha-A deletes SMS messages to cover its tracks and displays the offer to fix the user’s phone for a small fee," writes McAfee anti-virus analyst Jimmy Shah.

Multidroppers are usually put together by miscreants using components they haven't created themselves, a pattern repeated with the Kiazha money-making scam. "It appears that the author, with a lot of effort and testing, put together various malware like pieces from a toolkit, Shah adds.

China has become a hotspot of mobile malware of late. Last month a Trojan capable of infecting mobile devices running Windows CE surfaced in the republic.

The InfoJack Trojan is spread by either tricking mobile users into installing seemingly legitimate application installation files (that posed as stock trading apps or games, for example) or if punters inadvertently use an infected memory card on vulnerable devices.

The malware disabled Windows Mobile application installation security, allowing further malware components to be surreptitiously installed without user intervention or knowledge. InfoJack sent the infected device's serial number, operating system, and other information to the author of the Trojan. ®

New hybrid storage solutions

More from The Register

next story
Apple Pay is a tidy payday for Apple with 0.15% cut, sources say
Cupertino slurps 15 cents from every $100 purchase
Google recommends pronounceable passwords
Super Chrome goes into battle with Mr Mxyzptlk
Infosec geniuses hack a Canon PRINTER and install DOOM
Internet of Stuff securo-cockups strike yet again
Reddit wipes clean leaked celeb nudie pics, tells users to zip it
Now we've had all THAT TRAFFIC, we 'deplore' this theft
YouTube, Amazon and Yahoo! caught in malvertising mess
Cisco says 'Kyle and Stan' attack is spreading through compromised ad networks
TorrentLocker unpicked: Crypto coding shocker defeats extortionists
Lousy XOR opens door into which victims can shove a foot
Greater dev access to iOS 8 will put us AT RISK from HACKERS
Knocking holes in Apple's walled garden could backfire, says securo-chap
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
Top 5 reasons to deploy VMware with Tegile
Data demand and the rise of virtualization is challenging IT teams to deliver storage performance, scalability and capacity that can keep up, while maximizing efficiency.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.