In April, Microsoft will eliminate two critical vulnerabilities

At Tuesday, April 9, Microsoft will release a security update planned for their products. This month we will face two critical bulletin that will eliminate vulnerabilities in Internet Explorer and Windows.

The first of these will eliminate the vulnerability in Internet Explorer for Windows XP, Windows Vista, Windows 7 and Windows 8 Server Operating Systems Microsoft. The second bulletin describes a vulnerability that applies to all desktop versions of Windows, except Windows 8.

Experts said the corporation, these vulnerabilities could be used by attackers to remotely execute arbitrary code on the target system.

Developers Adobe Reader released Instructions for fixing critical vulnerabilities

Windows users can protect themselves by opening suspicious PDF-files using the built-in sandbox.

In his progress notification developers Adobe warned users that a product such companies as Reader and Acrobat (designed to work with PDF-files) are two zero-day vulnerabilities. Experts stress that making users vulnerable version 11.x for Windows can protect themselves by turning on Protected View.

When it is activated opened PDF-files will run in a sandbox. In addition, users can set up an alternative program to work with these documents. To activate the feature, you need to go to File> Edit> Preferences> Security (Enhanced) and select Protected View.

Recall these breaches were discovered thanks to the efforts of researchers from FireEye, a malicious PDF-document that exploits a previously unknown vulnerability in the programs.

Dr. Web: New Windows Trojan-blocker

Experts have found a new sample of the Trojan family - Trojan.Winlock, which found signs of a backdoor

Researchers antivirus company "Dr. Web" reported the discovery of new malware samples per family Trojan.Winlock, specializing in locking the operating system Windows. The virus, called Trojan.Winlock.7372, differs from its predecessors because it does not contain any images or texts, and be uploaded from the Internet, serving as a backdoor.

According to experts, the new malware is an atypical representative Trojan.Winlock, because it contains the usual components of such viruses. When you lock the operating system loads the virus all the necessary elements of the Internet, and when locking the screen displayed by normal web-page.

After activation of the infected computer Trojan.Winlock.7372 puts itself into a branch of the registry, conducting startup programs. Then, the virus triggers an infinite loop start and stop several applications, including the researchers note the Task Manager, Notepad, Registry Editor, Command Prompt, system settings, browsers, Microsoft Internet Explorer, Google Chrome, Firefox, Opera, application ProcessHacker, Process Monitor, and others. After that, the Trojan disables the firewall and makes invisible to the victim's window, which is functioning as a backdoor downloadable from hackers web-page with the requirement to pay to unlock the operating system. For "unlocking" attackers require at $ 200.

SmartScreen sends to Microsoft information about each application

Windows 8 Microsoft sends information about all installed programs

Hidden feature in Windows 8 called Windows SmartScreen sends to Microsoft information about each application that the user has downloaded from the internet, tried to install or installed in the operating system, according to Boy Genius Report, citing a programmer Nadim Kobeissi, who first discovered the function .

SmartScreen is the purpose of protecting the user from malicious software. Data is sent when the user runs the installer. Once Microsoft receives the data, it checks if the program certification. If not, the message that the launch of this program can damage, then the user is prompted to not install.