Yahoo! Inc. - 0.217% Detection Rate *
Did you just download a file that has a digital signature from Yahoo! Inc. and wonder if the file is safe? If so, please read on.
You will typically see Yahoo! Inc. when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view the additional details from the Yahoo! Inc. digital signature with the following steps:
- Open Windows Explorer and locate the Yahoo! Inc. file
- Right-click the file and select Properties
- Click the Digital Signatures tab
- Click on the View Certificate button
Here's a screenshot of a file that has been digitally signed by Yahoo! Inc.:
As you can see in the screenshot above, Windows states that "This digital signature is OK". This implies that the file has been published by Yahoo! Inc. and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot above, you can view all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also examine the address for Yahoo! Inc., such as the street name, city and country.
VeriSign Class 3 Code Signing 2004 CA, VeriSign Class 3 Code Signing 2010 CA, VeriSign Class 3 Code Signing 2009-2 CA and Symantec Class 3 SHA256 Code Signing CA has issued the Yahoo! Inc. certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
Yahoo! Inc. Files
The following are the Yahoo! Inc. files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 1/51 | SearchProtection.exe |
| 1/49 | yt.dll |
| 1/36 | yt.dll |
| 1/42 | YTSingleInstance.dll |
| 2/45 | yudptemp.exe |
| 1/68 | YMUpdater.exe |
| 1/57 | YMUpdater.exe |
| 1/41 | bpuninstall.exe |
| 1/51 | ytbb.exe |
| 1/43 | bpuninstall.exe |
| 1/66 | ytb_7.2.2.0_1.5.4_mail_bts_pub_uber_rev_setup_2008.11.25.01.exe |
| 2/54 | YServer.exe |
| 2/55 | ytb_8.5.1.4_2.5.1_bts_pub_us_setup_2012.12.18.01.exe |
| 1/54 | npYState.dll |
| 2/56 | msgr11us[1].exe |
| 2/56 | ytb.exe |
| 0/53 | yahooauservice.exe |
| 0/51 | yt.dll |
| 0/51 | yt.dll |
| 0/48 | yt.dll |
| 0/42 | yiesrvc.dll |
| 0/56 | ysearchutilsvc.exe |
| 0/50 | YTSingleInstance.dll |
| 0/51 | yt.dll |
| 0/50 | yt.dll |
| 0/51 | yt.dll |
Scanner and Detection Names
Here is the detection names for the Yahoo! Inc. files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AegisLab | Troj.W32.Genome |
| Agnitum | Trojan.Vilsel!RTgGX+x3n8Y |
| AhnLab-V3 | PUP/Win32.Adload.C908350 |
| Antiy-AVL | Trojan/Win32.Patched.gen, GrayWare/Win32.StartPage.gen, Trojan/Win32.Agent2, GrayWare[:not-a-virus]/Win32.StartPage.gen |
| ByteHero | Trojan.Malware.Win32.xPack.i |
| CAT-QuickHeal | (Suspicious) - DNAScan |
| CMC | Backdoor.Win32.Sinowal!O |
| Comodo | Heur.Suspicious |
| Emsisoft | Backdoor.Agent.YXB (B) |
| Ikarus | Trojan-Downloader.Win32.Agent.bbb |
| Invincea | virus.win32.madang.a |
| Jiangmin | Win32/Virut.bn |
| Rising | PE:Trojan.Win32.Generic.1675B213!376812051 |
| TheHacker | Trojan/Vilsel.augt |
| VBA32 | suspected of Trojan.Downloader.gen.h |
| Zillya | Backdoor.VB.Win32.17592 |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I have collected 9698 scan reports for the Yahoo! Inc. files. 21 of these scan results came up with some sort of detection. If you like, you can review the full details of the scan results by examining the files listed above.
Analysis Details
The analysis is done on certificates with the following serial numbers:
- 5a2d0e95592b515a5cf3f5c5d59c88b7
- 2ad1aaa3d5861baa7ee860253051309d
- 3d7a9a7d12556ab8688ca048c60f6018
- 3b2679059719dc063215d3ab46099c5f
- 55ba07d9849a0fd7d36c6ce40c4664b4