qualitink - 10% Detection Rate *
Did you just run into a download or a file on your computer that has been digitally signed by qualitink? Some of the security products refers to the detected files as Adware.NetFilter.E and Adware.Win32.BrowseFox.bG. The detection rate for the qualitink files collected here is 10%. Please read on for more details.
You'll probably notice qualitink when running the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view the digital signature details for qualitink with the following steps:
- Open Windows Explorer and locate the qualitink file
- Right-click on the file and select Properties
- Click the Digital Signatures tab
- Click on the View Certificate button
Here's a screenshot of a file digitally signed by qualitink:
As you can see in the screengrab above, Windows reports that "This digital signature is OK". This means that the file has been published by qualitink and that no one has tampered with the file.
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 qualitink, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the qualitink certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
qualitink Files
These are the qualitink files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 7/47 | updatequalitink.exe |
| 1/48 | qualitinkbho.dll |
| 1/48 | updatequalitink.exe |
| 1/47 | updatequalitink.exe |
| 6/50 | updatequalitink.exe |
| 4/50 | updatequalitink.exe |
| 1/47 | qualitinkbho.dll |
| 2/49 | utilqualitink.exe |
| 3/48 | updatequalitink.exe |
| 4/46 | qualitinkbho.dll |
| 2/47 | qualitink.BrowserFilter.Helper.dll |
| 9/45 | qualitinkBHO.dll |
| 5/54 | updatequalitink.exe |
| 25/55 | qualitinkBHO.dll |
| 6/54 | qualitink.BrowserAdapter.dll |
| 19/54 | {50c078f1-4117-4aad-852a-0b3bbfb46b18}.dll |
| 9/54 | qualitink.PurBrowse64.exe |
| 28/57 | wstlibg64.sys |
| 0/47 | updatequalitink.exe |
Scanner and Detection Names
Here's the detection names for the qualitink files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Adware.NetFilter.E |
| AVG | BrowseFox.F, Qualitink.C99 |
| AVware | Yontoo (fs), Adware.Win32.LinkSwift, Trojan.Win32.Generic!BT |
| Ad-Aware | Adware.BrowseFox.G, Adware.NetFilter.E |
| Agnitum | Riskware.Agent!, Trojan.BPlug! |
| AhnLab-V3 | Trojan/Win32.Zapchast, PUP/Win32.BrowseFox, PUP/Win64.BrowseFox, Trojan/Win64.SwiftBrowse |
| Antiy-AVL | AdWare/Win32.LinkSwift, AdWare/Win32.Agent, GrayWare[AdWare:not-a-virus]/Win32.LinkSwift |
| Arcabit | Adware.NetFilter.E |
| Avast | Win32:BrowseFox-C [PUP], Win64:BrowseFox-A [PUP], Win32:BrowseFox-CS [PUP] |
| Avira | ADWARE/BrowseFox.Gen2, ADWARE/BrowseFox.Gen |
| Baidu-International | Adware.Win32.BrowseFox.bG |
| BitDefender | Adware.BrowseFox.G, Adware.NetFilter.E |
| Bkav | W64.HfsAdware.A1F1 |
| ClamAV | Win.Adware.Browsefox-7, Win.Adware.Mplug-43, Win.Adware.Swiftbrowse-590, Win.Adware.Swiftbrowse-75 |
| Comodo | Application.Win32.Altbrowse.AK, Application.Win32.BrowseFox.JM |
| Cyren | W64/A-e967bae2!Eldorado |
| DrWeb | Adware.Plugin.100, Trojan.BPlug.10, Trojan.BPlug.9, Trojan.BPlug.141, Trojan.BPlug.214, Trojan.Yontoo.1734 |
| ESET-NOD32 | a variant of MSIL/BrowseFox.A, a variant of Win32/BrowseFox.G, a variant of Win32/BrowseFox.F, a variant of MSIL/BrowseFox.H, a variant of Win32/BrowseFox.O, a variant of Win32/BrowseFox.M, a variant of Win64/NetFilter.A potentially unsafe |
| Emsisoft | Win32.Worm.Kucirc.A (B), Adware.BrowseFox.G (B), Adware.NetFilter.E (B) |
| F-Prot | W32/A-44ec90a9!Eldorado, W32/A-d34eca05!Eldorado, W64/A-e967bae2!Eldorado |
| F-Secure | Adware.BrowseFox.G, Adware.NetFilter.E |
| Fortinet | Riskware/BrowseFox |
| GData | Adware.BrowseFox.G, Win32.Adware.Browserfox.H, Adware.NetFilter.E |
| Ikarus | AdWare.SwiftBrowse, PUA.SwiftBrowse |
| Jiangmin | AdWare/Yotoon.m |
| K7GW | Trojan ( 020000001 ) |
| Kaspersky | not-a-virus:AdWare.Win32.Agent.ahbx |
| Kingsoft | Win32.Troj.Generic.a.(kcloud), Win32.Troj.Agent.ah.(kcloud) |
| Malwarebytes | PUP.Optional.Qualitink.A, PUP.Optional.Sanbreel.A |
| McAfee | Artemis!C2F9B9839CF1, Artemis!B4DFBE0B45E5, Artemis!83083822C6A3, BrowseFox |
| McAfee-GW-Edition | Artemis!C2F9B9839CF1, Artemis!B4DFBE0B45E5, Artemis, BrowseFox |
| MicroWorld-eScan | Adware.BrowseFox.G, Adware.NetFilter.E |
| NANO-Antivirus | Riskware.Win32.Agent.crkvek, Trojan.Win32.BPlug.ddwtte, Trojan.Win32.BPlug.decyqf |
| Panda | PUP/Qualitink |
| Qihoo-360 | HEUR/QVM30.1.Malware.Gen |
| SUPERAntiSpyware | Adware.BrowseFox/Variant, Adware.NetFilter/Variant |
| Sophos | Generic PUA ML, Generic PUA DB, Browse Fox, BrowseSmart (PUA) |
| Symantec | PUA.Yontoo.C |
| TrendMicro-HouseCall | TROJ_GEN.F47V0927, TROJ_GEN.F47V0125, TROJ_GEN.F47V0215 |
| VBA32 | AdWare.LinkSwift, AdWare.Agent |
| VIPRE | Yontoo (fs), Adware.Agent, Adware.Win32.LinkSwift, Trojan.Win32.Generic!BT |
| Zillya | Backdoor.PePatch.Win32.44267, Backdoor.PePatch.Win32.42822, Adware.Yotoon.Win64.3 |
| nProtect | Trojan-Clicker/W32.LinkSwift.250144, Trojan-Clicker/W32.SwiftBrowse.61112 |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I have gathered 1292 scan reports for the qualitink files. 133 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 is based on certificates with the following serial numbers:
- 0e5e2b6947a31815c876634e7dec4b4e