Weather application on Alcatel phones and Play store caused massive financial loss to users

A weather application that comes preinstalled on Alcatel cell phones contained malware that secretly subscribed device proprietors to premium phone numbers behind their backs.

The application, named “Weather Forecast-World Weather Accurate Radar,” was developed by TCL Corporation, a Chinese hardware organization that in addition owns the Alcatel, BlackBerry, and Palm brands.

The application is one of the default applications that TCL install on Alcatel cell phones, yet it was likewise made available on Google Play Store for all Android clients – where it had been downloaded and installed in excess of ten million times.

But, at one point a year ago, both the application installed on some Alcatel devices and the one that was available on the Play Store were imperilled with malware. How the malware was added to the application is not yet known.


The contamination became exposed last summer, when Upstream, a UK-based mobile security firm, found suspicious traffic originating from the cell phones of a portion of its clients.

In a report distributed for the current week and shared with ZDNet, the organization says it initially recognized that the application was collecting clients’ information and sending it to a server in China. The application gathered geographic location, email locations, and IMEI codes, which is sent back to TCL.

However, this weather application isn’t the main suspicious application with nosy authorizations that gathers information and sends it back to China. There are a lot of those around us as already.

Upstream developers additionally discovered that in specific regions, the pernicious code concealed inside the application would likewise endeavour to subscribe clients to premium phone numbers that incurred large charges on users’ phone bills.

In Brazil, 2.5 million exchange attempts started from this Weather application on Alcatel devices and the devices were subsequently blocked in July and August 2018. Those 2.5 million exchange endeavours to buy a digital service began from 128,845 unique cell phone numbers.

In Kuwait, 78,940 exchanges endeavours started from Alcatel devices and the devices were blocked in July and August 2018. Exchange endeavours started by this Weather application on Alcatel gadgets which were additionally blocked in Nigeria, South Africa, Egypt, and Tunisia.

With everything taken into account, the organization says it recognized and blocked more than 27 million exchange endeavours crosswise over seven markets, which would have made misfortunes of around $1.5 million to phone proprietors on the off chance that they hadn’t been blocked.

Over these exchanges, Upstream developers additionally spotted adware-like conduct that began from a contaminated phone they’ve obtained from its previous proprietor.

The weather application, which kept running in the phone’s background, additionally begun shrouded program windows that stacked website pages and tapped on promotions. “We recorded 50MB to 250MB of data per day being consumed by the application’s unwanted activity,” researchers said.

This implies over driving up phone bills by subscribing clients to premium numbers, the application was also probably draining internet access data plans, bringing about advanced money related misfortunes to unfortunate casualties.


As indicated by Upstream, the greater part of the conduct they’ve seen started just from two sorts of cell phones, Pixi 4 and A3 Max models. In any case, the organization doesn’t have a worldwide view into tainted gadgets, and a lot more could, in any case, be contaminated, particularly clients who downloaded the application from the Play Store.

Google has expelled the application ( from the Play Store after Upstream worked with Wall Street Journal correspondents to inform both TCL and Google.

The purpose of the tradeoff doesn’t have all the earmarks of being with some obscure phone provider or maverick telecom provider in any of the influenced nations, chiefly in light of the fact that both the preinstalled and Play Store applications were influenced similarly.

The source of the contamination has all the earmarks of being a TCL engineer who had his framework compromised, despite the fact that this is just a hypothesis.

“The suspicious activity stopped after the WSJ contacted TCL,” an Upstream spokesperson told ZDNet yesterday via email, “although the data collection continued.”

Upstream revealed that it is right now working with TCL on examining the issue further. The organization said they didn’t dissect alternate applications uploaded on the Play Store from the same TCL account, yet they didn’t find any suspicious activity originating from them either.

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