Financial threats

Fabio, our researcher in Brazil, has noticed malware authors using an old trick to mask URLs. The trick involves specifying an IP address such as say, 66.102.13.19 in a numerical base other than base 10.

Malicious programs targeting the confidential data used to access online banking systems have long been the bane of financial organizations worldwide

It’s holiday time, and of course the bad guys know that shopping is a popular activity during this period, particularly in Europe and the US.

During routine malware analysis we sometimes find new techniques which are being used by Brazilian cybercriminals to remove security protection.

We’ve had a number of people contacting us with queries about ‘Kaspersky Lab Antivirus Online’ after their computer showed them the ransom message.

Today we heard a disturbing rumor about a new version of Gpcode. We immediately began talking to victims and trawling the Internet for samples.

Our previous blog on Gpcode said we’d managed to find a way to restore files in addition to those files that can be restored using the PhotoRec utility.

Our StopGpcode project has attracted a lot of attention from individual researchers and organizations who are interested in solving the puzzle of the blackmailing virus. Thanks for all of the feedback.

Currently, it’s not possible to decrypt files encrypted by Gpcode.ak without the private key. However, there is a way in which encrypted files can be restored to their original condition.

The whole new Gpcode outbreak has set me thinking about attackers and victims in general. Yes, decrypting the key used by the new Gpcode is a thorny problem and there’s no guarantee of success. So I’d like to remind everyone that common sense is as improtant as good technology.

Passivity on the…

Along with antivirus companies around the world, we’re faced with the task of cracking the RSA 1024-bit key. This is a huge cryptographic challenge.

Following on from Vitaly’s post about the new Gpcode variant, I just thought I’d remind everyone to back up their data.

We’ve detected a new variant of Gpcode – a dangerous file-encryptor. It encrypts a whole variety of user files, targeting files with extensions such as DOC, TXT, PDF, XLS, JPG, PNG, CPP, H etc.

There’s been an update on the Trojan case we mentioned earlier this week – a 24 year old has been sentenced to five and a half years for computer crime.

Regular readers of this blog and our analytical articles may remember that in summer last year we wrote about a new variant of Bancos.aam designed to steal data from users of QUIK, a Russian Internet trading system