Yahoo Japan Corporation - 0.228% Detection Rate *

Did you just download a file that is digitally signed by Yahoo Japan Corporation and wonder if the file is safe? If so, please read on.

You will typically see Yahoo Japan Corporation when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

Screenshot where Yahoo Japan Corporation appears as the verified publisher in the UAC dialog

You can also view the Yahoo Japan Corporation certificate with the following steps:

  1. Open up Windows Explorer and locate the Yahoo Japan Corporation file
  2. Right-click the file and select Properties
  3. Click on the Digital Signatures tab
  4. Click the View Certificate button

Here's a screenshot of a file that has been digitally signed by Yahoo Japan Corporation:

Screenshot of the Yahoo Japan Corporation certificate

As you can see in the screengrab above, Windows states that "This digital signature is OK". This means that the file has been published by Yahoo Japan Corporation and that no one has tampered with the file.

If you click the View Certificate button shown in the screencap above, you can see all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, and so on. You can also view the address for Yahoo Japan Corporation, such as the street name, city and country.

VeriSign Class 3 Code Signing 2004 CA, VeriSign Class 3 Code Signing 2009-2 CA and VeriSign Class 3 Code Signing 2010 CA has issued the Yahoo Japan Corporation certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screencap above.

Yahoo Japan Corporation Files

The following are the Yahoo Japan Corporation files I've gathered, thanks to the FreeFixer users.

Detection RatioFile Name
1/38YahooToolBar.dll
1/43yphb.exe
1/42ypcsm.exe
1/36YahooToolBar.dll
0/43ypho.dll
0/43YahooToolBar.dll
0/51ypho.dll
0/55YahooDesktop.exe
0/57YahooToolBar.dll
0/43ypho.dll
0/57ypho.dll

Scanner and Detection Names

Here's the detection names for the Yahoo Japan Corporation files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.

ScannerDetection Names
ByteHeroTrojan.Malware.Win32.xPack.m
ComodoHeur.Suspicious
PandaSuspicious file

* How the Detection Percentage is Calculated

The detection percentage is based on the fact that I've gathered 1751 scan results for the Yahoo Japan Corporation files. 4 of these scan results came up with some sort of detection. If you like, you can view the full details of the scan reports by examining the files listed above.

Analysis Details

The analysis is done on certificates with the following serial numbers:

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