Botnet Viruses Invade Smart-phones: Kicking up Some Dust on the World Cup

BEIJING, July 5, 2010 - New mobile viruses, disguised as "Free World Cup VOD" and other hot
topics, were captured last week by the Mobile Security Center of NetQin
Mobile Inc. More than 500 complaint cases were reported and filed on June 23.

Identified as ShadowSrv.A, FC.Downsis.A, BIT.N and MapPlug.A, these
viruses were embedded in mini mobile games to lure users to download. Once
downloaded, the device will be controlled by the virus originator. The virus
propagation model is the same as a computer "Botnet"; hence, the viruses are
defined as "Botnet viruses".

The term "botnet" is generally used to describe security threats on PCs,
where a group of computers all run a harmful application that is solely
controlled and manipulated by one owner or software source. The botnet may
also refer to a legitimate network of several computers that share program
processing amongst them. Though the purpose of the virus author is unknown,
the propagation model of the three viruses indicates that botnets on mobile
devices are now emerging and pose a growing threat.

"The explosion of mobile applications has made smart-phones an enticing
target for virus authors. Many security threats that were once only spread on
PCs, such as botnets, are now moving to mobile devices to maximize the
financial interest," said Dr. Lin Yu, CEO of NetQin.

According to the mobile security service provider, these viruses will
either send messages to all the contacts of the address book directly, or
send messages to the random phone numbers by connecting to the server; both
of which result in extra charges to the user's phone bill. Furthermore, the
viruses will delete the sent messages from a user's Outbox and SMS log. The
messages sent by viruses are themed the hottest topics, including Free World
Cup VOD, and the most popular blind date TV show, etc. All messages contain
URLs linked to malicious sites that users are unable to see until they've
already clicked and fallen into the virus trap.

The targets of these botnets are mobile devices with S60 3rd and 5th OS.
An estimated 100,000 mobile phones were impacted, according to the Mobile
Security Center of NetQin Mobile Inc. NetQin has now updated the virus
database to ensure users get timely protection. Meanwhile, the security
service provider is also working closely with operators to block the
malicious URLs and prevent further spread and infections.

About NetQin

Founded in Beijing in 2005 and backed by leading venture capital firms
like Seqouia, Mayfield and Fidelity, NetQin delivers complete mobile security
solutions based on "Cloud" security platform, including anti-virus,
anti-spam, privacy protection and online virus scan service, to over 51
million users worldwide. As a leading player in mobile security, NetQin holds
68% market share in China, and has received several industry awards,
including the 2009 China Frost & Sullivan Award for Mobile Security Market
Leadership.

Extensive partnership has accelerated the growth of NetQin. The company
is the only partner providing anti-spamming service to China Mobile, and is a
close partner of China Unicom. As an important partner to Nokia, NetQin
products are preloaded on all S60 devices sold in China. NetQin works closely
with Huawei mobile software, and has also been recognized as a platinum
partner of the Symbian Foundation.

For more information, please visit www.netqin.com .

Linda Liu of NetQin Mobile Inc., +86-10-8565-5555 x4406, liuyan at netqin.com