How to remove the yahoo virus

Most antivirus programs identify yahoo.exe as malware—for example Kaspersky identifies it as HEUR:Trojan.Win32.Generic or not-a-virus:Monitor.Win32.Ardamax.25, and TrendMicro identifies it as SPYWARE_KEYL_ARDAMAX.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the yahoo.exe malware

Yahoo.exe file information

Windows Task Manager with yahoo
Yahoo.exe process in Windows Task Manager

More precise details about what the process belongs to are not available. This is partly because the author is not identified.

Description: Yahoo.exe is not essential for Windows and will often cause problems. The yahoo.exe file is located in the Windows folder for temporary files. The file size on Windows 10/8/7/XP is 45,056 bytes. 
Yahoo.exe is a file with no information about its developer. The program has no visible window. The software is loaded during the Windows boot process (see Registry key: Run). The yahoo.exe file is not a Windows core file. Therefore the technical security rating is 64% dangerous, however you should also read the user reviews.

Recommended: Identify yahoo.exe related errors

External information from Paul Collins:

Important: You should check the yahoo.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Added by the DELF-KM TROJAN if located in C:\WINDOWS\yahoo.exe or C:\WINDOWS\system32\yahoo.exe
  Mike   (further information)
Ich habe Yahoo als Account und habe inzwischen erhebliche Probleme mit Änderungen und Löschungen. Hierbei fällt mir auf, dass es bei Yahoo keinen direkten Ansprechpartner gibt, weder per Email, noch per Phon. Es gibt Techniker, die man ab ca. 40€ für kleine Auskünfte usw. zu bezahlen hat !!!

Summary: Average user rating of yahoo.exe: based on 5 votes with 2 user comments. 3 users think yahoo.exe is essential for Windows or an installed application. 2 users think yahoo.exe is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving yahoo issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active yahoo process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the yahoo.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

yahoo.exe [all]