Facebook, Inc. - 0.398% Detection Rate *
Did you just run into a download or a file on your computer that has a digital signature from Facebook, Inc.? If that's the case, please read on.
You will typically see Facebook, Inc. when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screencap shows:
You can view additional details from the Facebook, Inc. certificate with the following procedure:
- Open up Windows Explorer and locate the Facebook, Inc. file
- Right-click the file and select Properties
- Click the Digital Signatures tab
- Click the View Certificate button
Here's a screenshot of a file that has been digitally signed by Facebook, Inc.:
As you can see in the screenshot above, Windows reports that "This digital signature is OK". This means that the file has been published by Facebook, Inc. and that no one has tampered with the file.
If you click the View Certificate button shown in the screencap 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, and so on. You can also examine the address for Facebook, Inc., such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA, VeriSign Class 3 Code Signing 2009-2 CA and DigiCert SHA2 Assured ID Code Signing CA has issued the Facebook, Inc. certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screengrab above.
Facebook, Inc. Files
The following are the Facebook, Inc. files I have collected, thanks to the FreeFixer users.
The FreeFixer tool treats files from Facebook, Inc. as trusted, which means that the Facebook, Inc. files will appear with a green background and that there is no removal checkbox for the file. However, as you can see in the scan results below, a few of the anti-virus scanners detects the Facebook, Inc. file(s). My guess is that those detections are incorrect and that the files are safe. It's unlikely that Facebook, Inc. would ship a malware file.
| Detection Ratio | File Name |
|---|---|
| 1/34 | FacebookCrashHandler.exe |
| 2/50 | facebookupdat%USERNAME%.exe |
| 2/49 | FacebookUpdate.exe |
| 1/53 | FacebookVideoCallSetup_v1.2.205.0 (1).exe |
| 1/65 | FacebookGameroom.exe |
| 0/27 | Facebook Gameroom Browser.exe |
| 0/55 | FacebookGamesNotifier.exe |
| 0/47 | FacebookMessenger.exe |
Scanner and Detection Names
Here's the detection names for the Facebook, Inc. files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
As mentioned above, I think these detections are incorrect since it is very unlikely that Facebook, Inc. would ship a malware file.
| Scanner | Detection Names |
|---|---|
| Bkav | W32.Cloda5b.Trojan.7f55, W32.Clod2e1.Trojan.a6dc |
| Rising | PE:Trojan.GenericKDV!6.B5C |
| TotalDefense | Win32/Tnega.dICee |
| eGambit | Unsafe.AI_Score_68% |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I have gathered 1759 scan results for the Facebook, Inc. files. 7 of these scan results came up with some sort of detection. If you like, you can review the full details of the scan reports by examining the files listed above.
Analysis Details
The analysis is based on certificates with the following serial numbers:
- 27878083400db86d07dbab6b43fba49c
- 195ef72fad5b09219ecb160a77dd2395
- 0ce941294ebfc09dcf9578901043be53