Who stole the cookie from the cookie jar? It's Cookiethief, a newly discovered Android trojan that gains root access to devices and exfiltrates browser and Facebook app cookies to a malicious server.

Attackers typically use stolen cookies to impersonate victims and access their online accounts in unauthorized fashion. In this instance, researchers believe the culprits are using the cookies for a spam scheme, based on an investigation of the attackers' command-and-control server, which turned up a page that advertises services for distributing spam on social networks and messenger apps.

The campaign appears to be in its early stages, with fewer than 1,000 known victims, according to a Thursday blog post from Kaspersky, whose research team discovered the threat.

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