TrojanDownloader:Win32/Losabel.F

Detected by Microsoft Defender Antivirus

Aliases: Virus.Win32.OnLineGames.AHK (Ikarus) Worm.Win32.AutoRun.aysv (Kaspersky) W32/Packed_Bero.B (Norman) Spyware.007Spy (Symantec)

Summary

TrojanDownloader:Win32/Losabel.F is a trojan that terminates security-related processes, intercepts system requests to execute security-related processes and attempts to download other malware.

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.

This threat may make lasting changes to an affected system’s configuration that will NOT be restored by detecting and removing this threat. For more information on returning an affected system to its pre-infected state, please see the following article/s:

Viewing hidden and/or system files:

For Windows 7: http://windows.microsoft.com/en-US/windows7/Show-hidden-files
For Windows Vista: http://windows.microsoft.com/en-US/windows-vista/Show-hidden-files
For Windows XP: http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/win_fcab_show_file_extensions.mspx?mfr=true

TrojanDownloader:Win32/Losabel.F

Summary

What to do now

Technical information

Threat behavior

Installation

Payload

Prevention

Symptoms

System changes