The new year has brought some bad news for Linux users and enthusiasts. According to a report published by cybersecurity firm CrowdStrike, Linux-specific malware saw a 35% increase in 2021 compared to a year before.
More specifically, the report here is talking about Linux malware targeting various Internet of Things (IoT) and mobile devices and how some of these malicious softwares are using the IoT to produce massive botnet armies in order to carry out distributed denial-of-service (DDoS) attacks.
The report adds that out of the 35% malware increase previously mentioned, around 22% is due to IoT specific malware belonging to three families:
Clearly, the most progress it seems was made by Mozi which saw a ten times rise or a 900% increase in the number of malicious samples in 2021 compared to that in 2020. The Mozi botnet is known to utilize distributed hash table (DHT) that has helped the malware ramp its figures up by such huge proportions.
While not quite as prevalent, XorDDoS also had a 123% or nearly two and a half times increase in its sample count, too.
And finally, we have the Miral botnet malware which saw three variants Sora, IZIH9, and Rekai, increase by 33%, 39%, and 83% respectively in 2021.