Posts Tagged ‘virus’

CryptoLocker – CryptoWall – CryptoWhatever!

It blipped in the news some months ago.  CryptoLocker, CryptoWall, CryptoWhatever.  Long and short of it once you get hit by it, it proceeds to encrypt documents on your PC and any network shares to which you have access.  Now of course if you choose to pay the ransom, which increases quickly the longer you wait, you may or may not receive an un-encrypt key.  Your antivirus “might” protect you against this but if the timing is wrong and a new mutation comes out before your AV can update itself, well, it’ll be pretty painful.

One of our long time clients had a user on a fully updated, fully protected PC get hit with this late on a Friday.  We experienced the tiniest fraction of possible damage because of two things:

1)      We quickly shut this machine down and separated it from the network.

2)      Most importantly, backups were in place.

Backups are your absolute best line of defense against ransomware.  And they should be tested periodically for restorability.  Are you 100% certain your defenses are all they can be?  If you’re not, you should be, we can show you how.

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What is HEARTBLEED??

What is the HEARTBLEED computer bug that you are hearing about?  And can you be affected?  In a word – YES!

It was accidental programming code that left a security hole in websites protected by OpenSSL against data theft.  About 60% or so of secure websites use this since they are sites where you login like banking, webmail, etc.  The code was not caught in proofreading back in 2011 and so has been out on the intertubes since then!

The secure sites can be identified easily in Firefox, Chrome and Internet Explorer and the web address starts out as https:// rather than the non-secure http:// .  The problem of course is that the locks looked locked, but they really weren’t.

People can confirm the sites have been patched using this link:

http://filippo.io/Heartbleed/

Then change passwords at sites known to be fixed.  You can also confirm by contacting the website owner.

Good luck – and safe, happy computing!

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Flashfake (back) Mac OS X botnet

A quick post for our Mac users out there – there is a nasty trojan on the net trying to get into your system!  According to www.securelist.com it is being distributed via infected websites as a Java applet that pretends to be an update for the Adobe Flash Player.

Once installed, the trojan adds entries to the host’s file to hijack users visiting various Google sites (e.g., Google.com.tw, Google.com.tl, etc.) to an IP address in Netherlands. Trojans are infections that can expose computers to control by hackers.  A botnet – in laymans terms – is what happens when many computers are infected and the power from all those computers can be used as one.  This particular bot has already affected over 650,000 Macs – and that is no small potatoes!

The server at the IP address displays a fake webpage designed to appear similar to the legitimate Google site.

Apple has developed a tool to detect and remove the Flashback trojan according to the BBC news, technology.

For a long time, Macs have not been vulnerable to PC malware – which remains true! However – now they are vulnerable to Mac malware.  Instructions on how to confirm if your Mac has been infected can be found on the security firm F-Secure’s website.

Good luck, Mac users – if you need any help, give us a call!

Happy computing!

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