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posted by martyb on Saturday January 25 2020, @06:53AM   Printer-friendly
from the Just-Works™ dept.

Mac users are getting bombarded by laughably unsophisticated malware:

Almost two years have passed since the appearance of Shlayer, a piece of Mac malware that gets installed by tricking targets into installing fake Adobe Flash updates. It usually does so after promising pirated videos, which are also fake. The lure may be trite and easy to spot, but Shlayer continues to be common—so much so that it's the number one threat encountered by users of Kaspersky Labs' antivirus programs for macOS.

Since Shlayer first came to light in February 2018, Kaspersky Lab researchers have collected almost 32,000 different variants and identified 143 separate domains operators have used to control infected machines. The malware accounts for 30 percent of all malicious detections generated by the Kaspersky Lab's Mac AV products. Attacks are most common against US users, who account for 31 percent of attacks Kaspersky Lab sees. Germany, with 14 percent, and France and the UK (both with 10 percent) followed. For malware using such a crude and outdated infection method, Shlayer remains surprisingly prolific.

An analysis Kaspersky Lab published on Thursday says that Shlayer is "a rather ordinary piece of malware" that, except for a recent variant based on a Python script, was built on Bash commands. Under the hood, the workflow for all versions is similar: they collect IDs and system versions and, based on that information, download and execute a file. The download is then deleted to remote traces of an infection. Shlayer also uses curl with the combination of options -f0L, which Thursday's post said "is basically the calling card of the entire family."

Another banal detail about Shlayer is its previously mentioned infected method. It's seeded in links that promise pirated versions of commercial software, episodes of TV shows, or live feeds of sports matches. Once users click, they receive a notice that they should install a Flash update. Never mind that Flash has been effectively deprecated for years and that platforms offering warez and pirated content are a known breeding ground for malware.


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  • (Score: 4, Informative) by Rosco P. Coltrane on Saturday January 25 2020, @07:55AM (4 children)

    by Rosco P. Coltrane (4757) on Saturday January 25 2020, @07:55AM (#948397)

    it's because they work: enough users get suckered to make the malware profitable.

    Whether Mac malware are simpler/dumber than malware targeted for other OS users is debatable: I see plenty of really obvious, piss-poor trickery attempts on Windows or Android - meaning, again, that there are plenty of suckers to go around on any platform.

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  • (Score: 2) by BsAtHome on Saturday January 25 2020, @09:29AM

    by BsAtHome (889) on Saturday January 25 2020, @09:29AM (#948421)

    Right so, the OS is not necessarily the primary factor. It is like the "Get rich quick" trap. Something too good to be true is only obvious to those who know how to think and refrain from too impulsive behaviour. That is, apparently, not an attribute shared by all people. You can also see it as the "Marshmallow experiment" in real life.

    Then again, there are some personality traits associated with users of different operating systems. The classic example, apple users get shown higher prices than others. How much more restraint apple users are, well, that would be up for debate.

  • (Score: 2) by zocalo on Saturday January 25 2020, @09:37AM (1 child)

    by zocalo (302) on Saturday January 25 2020, @09:37AM (#948426)
    Definitely this. You see patterns in spam as well; woefully inept attempts to get you to go some URL or other. that continue for weeks. One current campaign is the classic "Claim your $50 from $big_company" scam, only they frequently get the wrong subject with the body, e.g. the subject says "Amazon", but the body says "Walmart". You'd have to be stupid to click through, right? Yet they keep on coming, so unless the spammer is totally unware of the SNAFU, then people *must* still be clicking. (And this is despite the entire body of the email being so badly malformed that I suspect many anti-spam systems wouldn't even bother delivering it to the spam folder, let alone a user's inbox).

    Maybe we shouldn't be surprised. The classic "Nigerian Prince" phish that gave the "419 scam" its name is as old as the hills, and about as well publicised as it's possible for something like that to get, yet you *still* see those as well, so presumably that means they too are still effective. There are clearly a lot of clueless users out there - maybe if we stopped putting so much effort into preventing them from removing themselves from the gene pool the situation might improve, but until then the torrent of lame hacking/phishing attempts (and the slow slide towards an IRL Idiocracy) shall no doubt continue.
    --
    UNIX? They're not even circumcised! Savages!
    • (Score: 4, Interesting) by EEMac on Saturday January 25 2020, @05:18PM

      by EEMac (6423) on Saturday January 25 2020, @05:18PM (#948505)

      Spelling errors and obvious ploys are intentional. Scammers don't WANT To catch smart/informed people.

      Money can be more easily extracted from the gullible, uninformed, or less brilliant. That's who scammers target.

      Side note: I'm not quite knocking the victims. Every single person in the world has been naive or uninformed at some point.

  • (Score: 2) by epitaxial on Sunday January 26 2020, @06:19AM

    by epitaxial (3165) on Sunday January 26 2020, @06:19AM (#948779)

    If I lived in one of those ex soviet countries. There is no downside whatsoever. You won't get extradited and the government won't do a thing about it. If you're lucky you get a few grand for your troubles.