Chennai, NFAPost: The whole world is fighting against the coronavirus pandemic and to help people, many apps have been launched in the past few months. India too launched the Aarogya Setu app, coronavirus contact tracing mobile application. As of Wednesday, it has over 11.64 crore users.

SonicWall Labs Threats research team has found fake Aarogya Setu apps holding spyware components. The team has found multiple scenarios in the way this cyber-scam functions.

There are a number of fake apps with the package name cmf0.c3b5bm90zq.patch. The same code is used for a majority of these apps. The malware author unrolls them by re-branding the icon and application name. In this case, the app is shown as the legitimate Aarogya Setu App, but with an imperfect copy. The icon appears stretched and can be identified when kept along-side the legitimate app.

Upon execution, we do not see any activity on the screen, the team said. However, after some time, the app icon disappears from the app drawer. This contains reference to a domain – johnnj2-37916.portmap.io – in the patch_preferences.xml file. During an analysis, the malware did not try to communicate with this domain, however this domain is connected to malicious apps.

Similarly, a number of fake apps have been found with the package name yps.eton.application. In this case, the app has been shown as an Aarogya Setu Add-on app, which is not an official app. As the user installs and executes the app, it requests for the Device-Admin privileges and permission for installation from this source. To look less suspicious to the user, it also installs the official, legitimate Aarogya Setu App from its resource folder.

In the other case, the malware author has successfully duplicated the official Aarogya Setu icon. Basis the icon, identification of this malicious app is difficult.

There was no network activity witnessed during the team’s analysis session but there was a record of a domain – – within an xml file belonging to the app. This domain is related to another malicious Android app.

In all the three cases, the common element was the containment of spyware capabilities. All these apps contain code that is like the Android spyware SpyNote. This spyware can make phone calls, recording audio, send SMS, take pictures and record videos from the camera, and start the spyware every time the device reboots.

SonicWall Labs threats research team observed that some of these malicious apps are piggybacked on the legitimate Aarogya Setu app in the resources folder. These malicious apps install the legitimate app in the background, a technique used to fool the user into believing that the user installed the legitimate app. In reality, the malicious app executes its criminal functions in the background.

If the user deletes Aarogya Setu app from the device by long pressing the icon > uninstall method, only the legitimate app is removed, while the malicious app would still be available on the device. The only way to remove the malicious app is to remove it from settings > apps > uninstall. This trick has the potential to fool several users who are not vigilant.

SonicWall VP, Regional Sales-APAC, Debasish Mukherjee said, “As the Aarogya Setu App gained popularity in India, it became a target for malware creators.The outbreak of Covid-19 has created new avenues for cyberattackers to explore, innovate and strike in every malicious way. With increasing cyberthreats it appears that cybercriminals are working overtime to create dissonance among mass app users. We advise Android users to exercise maximum caution while downloading and using the Aarogya Setu App.”

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