zeus virus malwareZeus is a financial malware. It infects consumer PCs, waits for them to log onto a list of targeted banks and financial institutions, and then steals their credentials and sends them to a remote server in real time. Additionally, it may inject HTML into the pages rendered by the browser, so that its own content is displayed together (or instead of) the genuine pages from the bank’s web server. Thus, it is able to ask the user to divulge more personal information, such as payment card number and PIN, one time passwords and TANs, etc.

Zues Virus is understood to be the biggest culprit among the family of malware targeting the financial websites and institutions. According to some of the studies, as much as 44% of all financial malware are based upon Zeus.

Zeus – One of the Hardest Financial Malware to Get Detected

Despite such an alarming state, it is shocking to know that most of the Latest Security Software, even if they are updated to the latest version, are incapable of finding and removing Zeus Malware infections. In a recent study by Trusteer, it has been revealed that as much as as 55% of all the tested 10,000 computers, which were equipped with the latest updated security software and antivirus, were not able to detect and remove the traces of Zeus Virus.

The study shows that…

Out of the computers in which Zeus Trojan was detected,55% computers were having up-to-date antivirus, 14% were having antivirus installed but it was not up-to-date, while 31% were not having antivirus installed onto them.


In a derived conclusion from the results indicated in the study, it is estimated that installing an anti-virus product and maintaining it up to date reduces the probability to get infected by Zeus by 23%, compared to running without an anti-virus altogether. The effectiveness of an up to date anti virus against Zeus is thus not 100%, not 90%, not even 50% – it’s just 23%.

What is the Solution – How to Avoid Malware Like Zeus

So disturbing figures.

P.S.: But it re-iterates our viewpoint that no software, howsoever smart, intelligent and pricey, can buy you the absolute PC Security and Privacy. The safety of your computer is within your own hands. You MUST exercise caution before you click on any link.

It also helps to have a backup plan. The services of LifeLock, for example, can really help to bail you out if you do get into some identity theft trouble from clicking on a malignant link. Always be careful with your personal information on the internet, but definitely have a Plan B in place just in case something unpredictable happens to you.

[Read the Entire Report (pdf)]

Update: Read our other posts about about Zeus 2 and Zeus 3, the other variations of this deadly virus.