• This topic has 16 replies, 12 voices, and was last updated 8 years ago by Alex.
Viewing 17 posts - 1 through 17 (of 17 total)
  • Who knows about cryptolocker virus?
  • Alex
    Full Member

    Mate of mine has done the following

    a) let his AV subscription expire
    b) not loaded the free MS AV stuff
    c) opened up a zip file in an attachement

    A quick look suggests:L http://www.theguardian.com/technology/2014/jun/03/cryptolocker-what-you-need-to-know as he cannot access any of his office files. No ransom demand tho although maybe that was swiped when we installed Microsoft Security Essentials and Malabytesaware – both of which picked up Trojons and destroyed them.

    No file access tho, everything on the web suggests he’s screwed. This is W7 BTW.

    Oh and

    d) never did a backup even when I created him a google folder and said – stick everything in there once a week and keep four copies.

    Any thoughts? Or should I just let him down gently 😉

    mikewsmith
    Free Member

    d) never did a backup even when I created him a google folder and said – stick everything in there once a week and keep four copies.

    [video]https://www.youtube.com/watch?v=N48qg6PX2TU[/video]
    Install MSE scan then work forward

    kayla1
    Free Member

    I can’t help at all, but thank you for the Google folder tip!

    Alex
    Full Member

    😉 well if it saves someone. What he really should have done is to get an app to automate the backups. I think i still have the email with the links I sent him!

    There’s so much ‘free’ storage now google, dropbox, box, etc you’d be mad not to do regular backups.

    purpleyeti
    Free Member
    kcal
    Full Member

    I’m using Genie Timeline to do the auto-backup (for my W7 incarnation).
    That and regular Winclone backup of the W7 BootCamp partition.

    The OS X side is taken care of with SuperDuper! and Time Machine. The proof is when something goes wrong though!

    Alex
    Full Member

    Time machine works for me. I store all my work stuff encrypted in the cloud anyway. And every week take a full copy then monthlies after that. But that’s because I was brought up on the vast importance of regular backup!

    I’ll take a look at the genie timeline one if/when we get any files back.

    Thanks for the dec… link, been there.

    kcal
    Full Member

    Timeline works the way you’d expect – I also had another backup system running, but that was on a regular backup routine rather than mostly incremental – SyncBack (mostly free).

    Stevet1
    Free Member

    When I had something similar I could still boot up in console mode, then was able to run a script to create a new clean user. From within there I could run a virus remover.

    jb72
    Free Member

    If the files are still there but Word etc. is unable to open them – it does sound like crytpolocker. It’s possible there are shadow copies.

    <right click> a file and choose <properties> -> check the <previous versions> tab. If the shadow copies exist* try opening one of the earlier versions.

    * cryptolocker has been known to remove the previous versions … in which case you’re stuffed.

    mogrim
    Full Member

    I can’t help at all, but thank you for the Google folder tip!

    It won’t help you though if you map it to a normal drive – the cryptolocker virus will just encrypt the Google drive contents too. You need to limit access to web only.

    chewkw
    Free Member

    Crikey … this is one hell of a virus. 😮

    Alex
    Full Member

    Yeah mogrim that’s right.. hence getting the files backed up by an app to something password protected in the cloud is the better option. I was less concerned about virus protection than HD failure 😉 small steps and all that.

    Ta for the tips, he may have version turned on (it’s configurable on W7 I think). I’ll pop in and take a look later.

    Coyote
    Free Member

    Experienced this at work. It’s a bastard of a virus. Some sites claim to be able to “fix” corrupted files but in my experience, they don’t.

    Treat every email with suspicion and don’t double click on attachments unless you are sure of the originator.

    timba
    Free Member

    There are many variations, some say that they are Cryptolocker and aren’t

    There’s a blog here with a link to a decryption tool for a weaker variation. The same company also do an anti-malware ”emergency kit” to clean infections

    I’ve used their AV and firewall for years

    hutchweb
    Full Member

    Be careful with automatic backups, you can easily overwrite good backups with crypto’d versions, they are after all just changed versions of files. Need previous versions as well. I had a client where the crypto’d files backed up and overwrote previous backups. 100gb data destroyed. Very lucky to have a synch copy on a laptop.

    Alex
    Full Member

    @timba – thanks for that. We had another look last night and had just about given up, but if it’s the newer, easy to crack one that’d be fab. We’ll give th decrypter a go

    @hutch – yeah, that’s a fair point. I guess we’ll need to get him to try opening a file before hitting backup. Will keep 3-4 full versions tho.

Viewing 17 posts - 1 through 17 (of 17 total)

The topic ‘Who knows about cryptolocker virus?’ is closed to new replies.