BrowseStudio - 36% Detection Rate *
Did you just stumble upon a download or a file on your computer that has a digital signature from BrowseStudio? Some of the security products refers to the detected files as Generic.905 and Adware.SwiftBrowse.CS. The detection rate for the BrowseStudio files collected here is 36%. Please read on for more details.
You will typically notice BrowseStudio when double-clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screencap shows:
You can also view the BrowseStudio certificate with the following procedure:
- Open up Windows Explorer and locate the BrowseStudio file
- Right-click the file and select Properties
- Click on the Digital Signatures tab
- Click the View Certificate button
Here is a screengrab of a file that has been digitally signed by BrowseStudio:
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 BrowseStudio and that the file has not been tampered with.
If you click the View Certificate button shown in the screencap above, you can examine 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 BrowseStudio, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the BrowseStudio certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
BrowseStudio Files
The following are the BrowseStudio files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 16/55 | {fd74c1d1-1ac3-43f9-8336-32679dc7de45}gw64.sys |
| 19/56 | {5a175d0d-5539-4e73-8563-80c93aa35313}gw64.sys |
| 22/55 | {fd74c1d1-1ac3-43f9-8336-32679dc7de45}gw.sys |
| 30/56 | maintainer.exe |
| 17/55 | {fd74c1d1-1ac3-43f9-8336-32679dc7de45}gw64.sys |
| 23/52 | maintainer.exe |
| 38/55 | BrowseStudiobho.dll |
| 16/55 | {e8294a7e-8442-4f3a-8722-cb5c3f67ed67}gw64.sys |
| 4/54 | updatebrowsestudio.exe |
| 15/54 | BrowseStudio.BOASPRT.exe |
Scanner and Detection Names
Here's the detection names for the BrowseStudio files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Adware.SwiftBrowse.CH, Adware.SwiftBrowse.CS |
| AVG | Generic.905, BrowseFox.F |
| AVware | Trojan.Win32.Generic!BT, Yontoo (fs), Adware.BrowseFox |
| Ad-Aware | Adware.SwiftBrowse.CH, Adware.BrowseFox.V, Adware.SwiftBrowse.CS, Gen:Variant.Adware.Graftor.158883 |
| Agnitum | Riskware.Agent!, PUA.BrowseFox! |
| AhnLab-V3 | Adware/Win32.SwiftBrowse, Win-PUP/BrowseFox.Gen, PUP/Win32.BrowseFox |
| Antiy-AVL | GrayWare[AdWare:not-a-virus]/Win32.Yotoon.bfm, GrayWare[AdWare:not-a-virus]/Win32.Kranet, GrayWare[AdWare:not-a-virus]/Win64.Agent, Trojan/Win32.TSGeneric |
| Avast | Win32:Adware-BYZ [PUP], Win32:BrowseFox-EN [PUP] |
| Avira | Adware/BrowseFox.aol, Adware/BrowseFox.A.1227, ADWARE/BrowseFox.Gen7, APPL/BrowseFox.Gen4 |
| Baidu-International | Adware.Win32.BrowseFox.bV, Adware.Win64.BrowseFox.BCG, Adware.Win32.BrowseFox.BV, Adware.Win32.BrowseFox.bO, Adware.MSIL.BrowseFox.BH |
| BitDefender | Adware.SwiftBrowse.CH, Adware.BrowseFox.V, Adware.SwiftBrowse.CS, Gen:Variant.Adware.SwiftBrowse.1, Gen:Variant.Adware.Graftor.158883 |
| Bkav | W32.HfsAdware.F4AB |
| CAT-QuickHeal | AdWare.Yotoon.A5, Adware.BrowseFox.A5 |
| ClamAV | Win.Adware.Swiftbrowse-497, Win.Adware.Netfilter-134, Win.Adware.Agent-22685, Win.Adware.Agent-30160 |
| Comodo | TrojWare.Win32.AltBrowse.IZZV, Application.Win32.BrowseFox.B, Application.Win32.BrowseFox.JM |
| DrWeb | Tool.NetFilter.313, Trojan.BPlug.437, Trojan.BPlug.281, Trojan.BPlug.167 |
| ESET-NOD32 | a variant of Win64/BrowseFox.CG, Win32/BrowseFox.V, a variant of Win32/BrowseFox.O potentially unwanted, a variant of MSIL/BrowseFox.H |
| Emsisoft | Adware.SwiftBrowse.CH (B), Adware.BrowseFox.V (B), Adware.SwiftBrowse.CS (B), Gen:Variant.Adware.SwiftBrowse.1 (B), Gen:Variant.Adware.Graftor.158883 (B) |
| F-Prot | W64/A-59c9c70a!Eldorado, W32/A-76f53fd6!Eldorado, W32/A-de841313!Eldorado, W32/S-5aefa7b7!Eldorado |
| F-Secure | Adware.SwiftBrowse.CH, Adware.BrowseFox.V, Adware.SwiftBrowse.CS, Gen:Variant.Adware.SwiftBrowse.1, Gen:Variant.Adware.Graftor.158883 |
| Fortinet | Riskware/BrowseFox |
| GData | Adware.SwiftBrowse.CH, Adware.BrowseFox.V, Adware.SwiftBrowse.CS, Gen:Variant.Adware.SwiftBrowse.1, Gen:Variant.Adware.Graftor.158883 |
| Ikarus | AdWare.SwiftBrowse, not-a-virus:AdWare.Yotoon |
| K7AntiVirus | Trojan ( 004af26b1 ), Trojan ( 0040f9921 ) |
| K7GW | Trojan ( 004af26b1 ), DoS-Trojan ( 2007ecb11 ) |
| Kaspersky | not-a-virus:AdWare.Win32.Yotoon.bfm |
| Malwarebytes | PUP.Optional.SwiftBrowse, PUP.Optional.BrowseStudio.A |
| McAfee | Artemis!ACEC5BBEB19C, BrowseFox-FRR |
| McAfee-GW-Edition | Artemis, BrowseFox-FRR |
| MicroWorld-eScan | Adware.SwiftBrowse.CH, Adware.BrowseFox.V, Adware.SwiftBrowse.CS, Gen:Variant.Adware.SwiftBrowse.1, Gen:Variant.Adware.Graftor.158883 |
| NANO-Antivirus | Riskware.Win32.NetFilter.dgkdox, Riskware.Win32.Kranet.dgiwfc, Trojan.Win32.BPlug.dfohwl, Trojan.Win32.Generic.dgcqyo |
| Panda | Trj/CI.A |
| Qihoo-360 | Win32/Virus.Adware.240, HEUR/QVM00.1.Malware.Gen, Win32/Virus.Adware.708, HEUR/QVM30.1.Malware.Gen, HEUR/QVM03.0.Malware.Gen, HEUR/QVM10.1.Malware.Gen |
| SUPERAntiSpyware | Adware.SwiftBrowse, Adware.BrowseFox/Variant |
| Sophos | Generic PUA EP |
| Symantec | Yontoo.C |
| TrendMicro | TROJ_GEN.R03EC0EKI14 |
| TrendMicro-HouseCall | TROJ_GEN.R03EC0EKI14 |
| VBA32 | AdWare.Win64.Yotoon, AdWare.Yotoon, AdWare.Kranet |
| VIPRE | Trojan.Win32.Generic!BT, Yontoo (fs), Adware.BrowseFox |
| Zillya | Adware.Yotoon.Win64.14, Backdoor.CPEX.Win32.29350, Adware.Kranet.Win32.476, Backdoor.PePatch.Win32.53723 |
| nProtect | Adware.SwiftBrowse.CH, Adware.BrowseFox.V, Adware.SwiftBrowse.CS |
* How the Detection Percentage is Calculated
The detection percentage is based on that I have collected 2480 scan results for the BrowseStudio files. 888 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:
- 11ae532a33120159e1078a0d3ede88c9