Traditionally, Mac customers have not needed to fear about malware as a lot as their Home windows-using cousins.
Though malware focusing on Apple gadgets really predates viruses written for PCs, and there have been some households of malware which have introduced a big menace for each working techniques (as an illustration, the Phrase macro viruses that hit computer systems arduous from 1995 onwards), it’s typically the case that you just’re merely lots much less more likely to encounter malware in your Mac than you’re in your Home windows PC.
However that does not imply that Mac customers needs to be complacent. And the latest discovery of a brand new malware pressure emphasises that the menace – even when a lot smaller than on Home windows – stays actual.
Safety researchers at SentinelOne have warned that the brand new malware, dubbed “NotLockBit”, is focusing on macOS techniques – suggesting that cybercriminals are in search of victims who could have made the error of being extra relaxed about their laptop safety.
Though it was initially suspected that the malware was linked to the infamous LockBit ransomware gang, additional evaluation means that the menace is a definite pressure falsely claiming affiliation.
In what might nearly be described as a “false-flag” operation, NotLockBit makes use of LockBit’s signature desktop wallpaper in what appears to be an try to mislead victims and safety researchers of its origin.
NotLockBit claims to be model 2.0, and but LockBit 3.0 was launched a while in the past, and key members of the LockBit gang have been arrested and its infrastructure seized.
Earlier ransomware threats in opposition to macOS customers have been largely proof-of-concept or have not develop into widespread.
The real LockBit ransomware group was accountable for producing a model of its ransomware for macOS final yr, however as a result of it was buggy and crashed simply it was not thought-about a critical menace.
The brand new malware analysed by SentinelOne’s researchers has been distributed as an x86-64 binary – that means that it’ll solely run on Intel-based Macs and Macs utilizing the Rosetta emulation service.
In keeping with consultants NotLockBit seems to be “very a lot in growth,” and there are at present no recognized victims of the malware or proof that it’s being actively distributed within the wild.
However when you had been to come across NotLockBit, on a Mac that might run it, then it could try to exfiltrate information out of your laptop to AWS cloud storage buckets, encrypting information left behind in your Mac and including a .abcd suffix to their filenames.
The fast menace of this specific ransomware pattern has been diminished by its discovery, after the menace actors introduced it to the eye of researchers by importing to VirusTotal (seemingly in an try to see if any anti-virus merchandise would detect it as malicious).
That act prompted the safety neighborhood to take motion, and the AWS accounts utilized by the hackers through the data-exfiltration course of have been eliminated.
However we’d be silly to suppose that extra work gained’t be completed on this and different Mac ransomware within the months and years forward. As ever, corporations whose staff use Macs can be clever to guard them with safety options to scale back the possibility of them being the weak hyperlink by means of which a malicious hacker can wreak havoc all through an organisation.
Editor’s Be aware: The opinions expressed on this visitor writer article are solely these of the contributor and don’t essentially mirror these of Tripwire.
