Wajamu - 5% Detection Rate *
Did you just find a download or a file on your computer that is digitally signed by Wajamu? Some of the security products refers to the detected files as Adware.SearchGuard.B and a variant of Win32/Toolbar.BitCocktail.B. The detection rate for the Wajamu files collected here is 5%. Please read on for more details.
You will probably notice Wajamu when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screencap shows:
You can view the additional details from the Wajamu digital signature with the following steps:
- Open Windows Explorer and locate the Wajamu file
- Right-click on the file and select Properties
- Click the Digital Signatures tab
- Click the View Certificate button
Here is a screenshot of a file signed by Wajamu:
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 Wajamu 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, and so on. You can also see the address for Wajamu, such as the street name, city and country.
Thawte Code Signing CA - G2 has issued the Wajamu certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
Wajamu Files
These are the Wajamu files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 1/52 | v-bates.exe |
| 2/54 | guardsvc.exe |
| 1/50 | Extension64.dll |
| 2/54 | notifier.exe |
| 1/51 | PrefHelper.exe |
| 2/54 | Extension32.dll |
| 2/54 | guardsvc.exe |
| 3/53 | notifier.exe |
| 5/53 | ExtensionUpdaterService.exe |
| 1/53 | NMHClient.exe |
| 3/44 | v-bates.exe |
| 6/54 | ExtensionUpdaterService.exe |
| 11/54 | PrefHelper.exe |
| 0/51 | Extension64.dll |
| 0/51 | notifier.exe |
Scanner and Detection Names
Here is the detection names for the Wajamu files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVG | Wajamu.F3D |
| AVware | Wajamu (fs) |
| Ad-Aware | Adware.SearchGuard.B |
| Antiy-AVL | Trojan/Win32.TSGeneric |
| Baidu-International | Adware.Win32.Wajam.77, Adware.Win32.BitCocktail.108, Adware.Win32.Wajam.81, Adware.Win32.BitCocktail.81, Trojan.Win32.Bitcoinminer.71 |
| BitDefender | Adware.SearchGuard.B |
| DrWeb | Adware.Shopper.423 |
| ESET-NOD32 | a variant of Win32/Toolbar.BitCocktail.B |
| Emsisoft | Adware.SearchGuard.B (B) |
| F-Secure | Adware.SearchGuard.B |
| Fortinet | Riskware/Toolbar_BitCocktail |
| GData | Adware.SearchGuard.B |
| Malwarebytes | PUP.Optional.SweetPacks.A |
| MicroWorld-eScan | Adware.SearchGuard.B |
| TrendMicro-HouseCall | TROJ_GEN.F47V0609, TROJ_GEN.F47V0412 |
| VIPRE | Wajamu (fs) |
| nProtect | Adware.SearchGuard.B |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I have gathered 834 scan results for the Wajamu files. 40 of these scan reports came up with some sort of detection. You can review the full details of the scan reports by examining the files listed above.
Analysis Details
The analysis has been done on certificates with the following serial numbers:
- 254859747f512412bb92cb81d0c020a7