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Trojan:DOS/Sinowal.M
Detected by Microsoft Defender Antivirus
Aliases: Backdoor.Win32.Sinowal.fka (Kaspersky)
Summary
Trojan:DOS/Sinowal.M is a component of Win32/Sinowal - a family of password-stealing and backdoor trojans. The trojan may try to find a cryptographic certificate on the infected computer and install a certificate on the computer to mislead users in Secure Sockets Layer (SSL) Web transactions. The trojan may also capture user data such as banking credentials from various user accounts and send the data to Web sites specified by the attacker. Some Win32/Sinowal components may also open a backdoor on a TCP port. Win32/Sinowal may try to perform certain operations from the context of a trusted process such as explorer.exe in order to bypass local software-based firewalls.
Trojan:DOS/Sinowal.M is a detection for a malformed MBR (Master Boot Record) generated by VirTool:WinNT/Sinowal. It loads the driver loader code of Sinowal when the affected computer boots.
Manual removal is not recommended for this threat. To detect and remove this threat and other malicious software that may have been installed, run a full-system scan with an up-to-date antivirus product such as Microsoft Security Essentials, or the Microsoft Safety Scanner. For more information about using antivirus software, see http://www.microsoft.com/security/antivirus/av.aspx.
Win32/Sinowal attempts to steal sensitive and confidential information from affecters users in order to perpetrate fraud. If you believe that your personal financial information may have been compromised, please refer to the following advisory for additional advice:
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