The FBI is warning about a dangerous new type of malware called the Beta Bot that cyber crooks can use to steal your banking and other sensitive information. Beta Bot can disable your anti-virus software and block access to security websites.
One way the malware spreads is through an official-looking Microsoft Windows message box. If you see a popup for Windows Command Processor like the image above or something similar and you didn’t request it or weren’t making any changes, DO NOT click “YES.” That will allow hackers to reach your sensitive information. The malware also spreads through Skype and USB thumb drives.
According to information on the Internet, this fake Microsoft Security Update claims to offer patches against the Mytob and Sober Zafi worms, but in fact, it contains the SDBot Trojan.
To find out if the Microsoft Security Update pop up on your computer is real or fake: Microsoft will never send you an attached file. Microsoft includes a link back to its website and a downloadable patch.
BBB suggests going to the Microsoft Security Update section and do not click on the link for an update.
If your computer becomes infected, run a full scan with up-to-date anti-virus software. If the malware blocks access to security sites, download anti-virus software to an uninfected computer, transfer it to a USB drive and use that drive to run the anti-virus scan.