Did you just find a download or a file on your computer that has been digitally signed by Magic Walk? Some of the security products refers to the detected files as Gen:Adware.BrowseFox.1 and PUP.Optional.BrowseFox. The detection rate for the Magic Walk files collected here is 56%. Please read on for more details.
You will probably notice Magic Walk when running the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screengrab shows:

You can also view the Magic Walk certificate with the following steps:
Here is a screenshot of a file signed by Magic Walk:

As you can see in the screencap above, the Windows OS states that "This digital signature is OK". This implies that the file has been published by Magic Walk and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot 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 Magic Walk, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Magic Walk certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Magic Walk files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 18/51 | {6CC54AAB-8983-4F8A-8231-50DEE471E10E}.dll |
| 30/56 | c7c5384f-d9e9-4db1-8c72-135ecccbc571.dll |
| 38/56 | plugincontainer.exe |
| 36/56 | updater.exe |
Here is the detection names for the Magic Walk files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Gen:Adware.BrowseFox.1 |
| AVG | BrowseFox.059, AdPlugin.IKN |
| AVware | Trojan.Win32.Generic!BT |
| Ad-Aware | Gen:Adware.BrowseFox.1 |
| AegisLab | Adware.BrowseFox, AdWare.W32.Yotoon |
| Agnitum | Riskware.Agent! |
| AhnLab-V3 | Win-PUP/BrowseFox.Gen, PUP/Win32.BrowseFox |
| Antiy-AVL | GrayWare[AdWare]/Win32.BrowseFox.de, GrayWare[AdWare:not-a-virus]/Win32.BrowseFox, GrayWare[AdWare]/Win32.BrowseFox.bz |
| Arcabit | Adware.BrowseFox.1 |
| Avira | ADWARE/BrowseFox.Gen7, ADWARE/BrowseFox.Gen |
| Baidu-International | Adware.Win32.BrowseFox.CJ, Adware.Win32.BrowseFox.AU, Adware.Win32.BrowseFox.CW |
| BitDefender | Gen:Adware.BrowseFox.1 |
| Bkav | W32.HfsAdware.4490 |
| ClamAV | Win.Adware.Browsefox-37523, Win.Adware.Browsefox-12832, Win.Adware.Browsefox-12975 |
| Cyren | W32/S-dc27edd1!Eldorado, W32/S-0550df2d!Eldorado, W32/S-fde75f2d!Eldorado, W32/S-b844dee6!Eldorado |
| DrWeb | Trojan.Yontoo.3728 |
| ESET-NOD32 | a variant of Win32/BrowseFox.CJ potentially unwanted, a variant of Win32/BrowseFox.AU potentially unwanted, a variant of Win32/BrowseFox.CW potentially unwanted |
| Emsisoft | Gen:Adware.BrowseFox.1 (B) |
| F-Prot | W32/S-dc27edd1!Eldorado, W32/S-0550df2d!Eldorado, W32/S-fde75f2d!Eldorado, W32/S-b844dee6!Eldorado |
| F-Secure | Gen:Adware.BrowseFox.1 |
| Fortinet | Adware/Amonetize, Adware/BrowserFox |
| GData | Gen:Adware.BrowseFox.1, Win32.Adware.BrowseFox.X@gen |
| Ikarus | PUA.BrowseFox |
| Jiangmin | AdWare.BrowseFox.ayiw, AdWare.Amonetize.iid, AdWare.BrowseFox.banm |
| K7AntiVirus | Adware ( 004d94ae1 ), Unwanted-Program ( 004ddb061 ), Adware ( 004dd9381 ) |
| K7GW | Adware ( 004d94ae1 ), Unwanted-Program ( 004ddeff1 ), Adware ( 004dd9381 ) |
| Kaspersky | not-a-virus:AdWare.Win32.Amonetize.cffl, not-a-virus:AdWare.Win32.Agent.jtvg, not-a-virus:HEUR:AdWare.Win32.Amonetize.gen |
| Malwarebytes | PUP.Optional.BrowseFox |
| McAfee-GW-Edition | BehavesLike.Win32.BrowseFox.ch, BehavesLike.Win32.BrowseFox.th |
| MicroWorld-eScan | Gen:Adware.BrowseFox.1 |
| NANO-Antivirus | Riskware.Win32.BrowseFox.dzvgxa, Riskware.Win32.Amonetize.eamyoa |
| Panda | Trj/Genetic.gen |
| Qihoo-360 | Win32/Virus.Adware.708, Win32/Virus.Adware.136 |
| Rising | PE:Malware.Generic(Thunder)!1.A1C4 [F], PE:Adware.BrowseFox!1.A310 [F] |
| Sophos | Browse Fox (PUA) |
| Symantec | PUA.Gen.2, PUA.Yontoo.C!gen4 |
| Tencent | Win32.Risk.Adware.Fhw, Win32.Risk.Adware.Wqxj, Win32.Risk.Adware.Dxne |
| TrendMicro | TROJ_GEN.R00JC0OBP16 |
| VIPRE | Trojan.Win32.Generic!BT |
| Zillya | Adware.BrowseFoxGen.Win32.17 |
The detection percentage is based on the fact that I have gathered 219 scan reports for the Magic Walk files. 122 of these scan results came up with some sort of detection. If you like, you can view the full details of the scan results by examining the files listed above.
The analysis has been done on certificates with the following serial numbers: