An Android bug Strandhogg 2.0 lets malware pose as real apps & steal user data


Security researchers have found a major vulnerability in almost every version of Android, which lets malware imitate legitimate apps to steal app passwords and other sensitive data.


The good news is that Promon said it has no evidence that hackers have used the bug in active hacking campaigns. The caveat is that there are “no good ways” to detect an attack. Fearing the bug could still be abused by hackers, Promon delayed releasing details of the bug until Google could fix the “critical”-rated vulnerability.

A spokesperson for Google told TechCrunch that the company also saw no evidence of active exploitation. “We appreciate the work of the researchers, and have released a fix for the issue they identified.” The spokesperson said Google Play Protect, an app screening service built-in to Android devices, blocks apps that exploit the Strandhogg 2.0 vulnerability. When a victim enters their password on the fake overlay, their passwords are siphoned off to the hacker’s servers. The real app then appears as though the login was real.

Strandhogg 2.0 doesn’t need any Android permissions to run, but it can also hijack the permissions of other apps that have access to a victim’s contacts, photos, and messages by triggering a permissions request.

“If the permission is granted, then the malware now has this dangerous permission,” said Hansen. Once that permission is granted, the malicious app can upload data from a user’s phone. The malware can upload entire text message conversations, said Hansen, allowing the hackers to defeat two-factor authentication protections.

The risk to users is likely low, but not zero. Promon said updating Android devices with the latest security updates — out now — will fix the vulnerability. Users are advised to update their Android devices as soon as possible.

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