Tue, Sep 22, 2015 - Page 1 News List

Apple pulls some Chinese apps after malware uncovered

MISMADE IN CHINA:WeChat was one of the apps affected by code used by developers who accessed a counterfeit version of Apple’s Xcode

AP, BEIJING

Apple has removed some applications from its App Store after developers in China were tricked into using software tools that added malicious code in an unusual security breach.

Apple gave no details of which companies were affected.

However, Tencent Holdings (騰訊) said that its popular WeChat (微信) app was affected and that it had released a new version after spotting the malicious code.

Chinese news reports said others affected included banks, an airline and a popular music service.

The malicious code spread through a counterfeit version of Apple’s Xcode tools used to create apps for its iPhones and iPads, according to the company.

It said the counterfeit tools spread when developers obtained them from “untrusted sources” rather than directly from Apple.

The malicious software collects information from infected devices and uploads it to outside servers, according to Palo Alto Networks, a US-based security firm.

It was first publicized last week by security researchers at Alibaba Group Holding (阿里巴巴), the e-commerce giant, who dubbed it XcodeGhost.

The creators of the malware took advantage of public frustration with Beijing’s Internet filters, which hamper access to foreign Web sites. That prompts some people to use copies of foreign software or documents that are posted on Web sites within China to speed up access.

“Sometimes network speeds are very slow when downloading large files from Apple’s servers,’’ wrote Claud Xiao, a Palo Alto Networks researcher, on its Web site.

Due to the large size of the Xcode file, “some Chinese developers choose to download the package from other sources or get copies from colleagues,” he said.

So far about 40 apps with malicious code made it into the App Store, Palo Alto Networks researchers said.

The list includes some of the most popular apps in China, like the taxi-hailing app Didi Kuaidi (滴滴打車), as well as Citic Industrial Bank (中信銀行), China Southern Airlines (中國南方航空) and the music service of NetEase (網易), a popular Web portal, according to the Yangcheng Evening News.

Many of the apps are popular elsewhere as well, like WeChat, which has about 500 million users, and the business card scanner CamCard.

The bad versions of Xcode were all on a cloud hosting service owned by Chinese Internet company Baidu (百度).

Baidu has removed them, Palo Alto Networks’ Ryan Olson said.

Researchers said only the most recent versions of the apps created with the counterfeit version of Xcode were at risk.

The bad Xcode was available only to those developers who had disabled Apple’s safety features.

Otherwise, Apple would have presented a warning that something was wrong with Xcode, Olson said.

The incident is only the sixth time malicious software is known to have made it through Apple’s screening process for products on its App Store, according to Xiao.

Additional reporting by NY Times News Service

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