Malware may spread via FB Messenger


Digmine was first seen in South Korea

A new cryptocurrency-mining bot, named “Digmine”, that was first observed in South Korea, is spreading fast through Facebook Messenger across the world, Tokyo-headquartered cybersecurity major Trend Micro has warned.
After South Korea, it has since spread to Vietnam, Azerbaijan, Ukraine, the Philippines, Thailand and Venezuela. It is likely to reach other countries soon, given the way it propagates, the report said.
Facebook Messenger works across different platforms but “Digmine” only affects the Messenger’s desktop or web browser (Chrome) version. If the file is opened on other platforms, the malware will not work as intended, Trend Micro said in a blogpost.
“Digmine” is coded in AutoIt and sent to would-be victims posing as a video file but is actually an AutoIt executable script. If the user’s Facebook account is set to log in automatically, “Digmine” will manipulate Facebook Messenger in order to send a link to the file to the account’s friends.
The abuse of Facebook is limited to propagation for now, but it wouldn’t be implausible for attackers to hijack the Facebook account itself down the line. This functionality’s code is pushed from the command-and-control server, which means it can be updated.
A modus operandi of cryptocurrency-mining botnets and particularly for “Digmine”, is to stay in the victim’s system for as long as possible. It also wants to infect as many machines as possible.

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