Zugo Ltd - 8% Detection Rate *
Did you just find a download or a file on your computer that is digitally signed by Zugo Ltd? Some of the security products refers to the detected files as Adware.Zugo.71 and Zugo Ltd (v) (not malicious). The detection rate for the Zugo Ltd files collected here is 8%. Please read on for more details.
You will typically see Zugo Ltd when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screencap shows:
You can view additional details from the Zugo Ltd certificate with the following steps:
- Open up Windows Explorer and locate the Zugo Ltd 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 signed by Zugo Ltd:
As you can see in the screenshot above, Windows states that "This digital signature is OK". This means that the file has been published by Zugo Ltd 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, etc. You can also view the address for Zugo Ltd, such as the street name, city and country.
UTN-USERFirst-Object and COMODO Code Signing CA 2 has issued the Zugo Ltd certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
Zugo Ltd Files
The following are the Zugo Ltd files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 3/46 | ToolbarUpdaterService.exe |
| 3/51 | SearchToolbar.dll |
| 1/43 | tbcore3.dll |
| 4/48 | toolbarupdaterservice.exe |
| 4/46 | Toolbar32.dll |
| 3/47 | Toolbar32.dll |
| 2/46 | SearchToolbar.dll |
| 1/51 | Au_.exe |
| 3/50 | SearchToolbarUpdater.exe |
| 7/47 | ToolbarUpdaterService.exe |
| 3/47 | ReactivateIE.exe |
| 5/41 | Toolbar32.dll |
| 9/57 | search_protect.exe |
| 6/47 | 832 |
| 4/46 | Toolbar32.dll |
| 1/43 | ToolbarUpdaterService.exe |
| 14/55 | search_protect.exe |
| 6/57 | ToolbarUpdaterService.exe |
Scanner and Detection Names
Here is the detection names for the Zugo Ltd files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVware | Zugo Ltd (v) |
| Ad-Aware | Adware.Zugo.O |
| Agnitum | PUA.Zugo! |
| Antiy-AVL | Trojan/Win32.Agent.gen |
| Avast | Win32:Adware-gen [Adw] |
| Avira | TR/Agent.745368 |
| Baidu-International | Adware.Win32.Agent.45 |
| BitDefender | Adware.Zugo.O |
| Bkav | W32.SWhiteSmoke.Trojan |
| Comodo | UnclassifiedMalware, ApplicUnwnt.Win32.AdWare.Zango.A, Application.Win32.WebToolbar.Zugo.~A |
| DrWeb | Adware.Zugo.71, Trojan.DownLoader7.7108 |
| ESET-NOD32 | a variant of Win32/Toolbar.Zugo, Win32/Toolbar.Zugo, Win32/Toolbar.Zugo.A, a variant of Win32/Distromatic.C potentially unwanted, Win32/Toolbar.Zugo.D, a variant of Win32/Toolbar.Zugo potentially unwanted |
| Emsisoft | Riskware.Win32.Toolbar.Zugo.AMN (A), Riskware.Win32.Toolbar.Zugo.AMN!A2, Adware.Zugo.O (B) |
| Fortinet | Adware/Zugo, Riskware/Toolbar |
| GData | Adware.Zugo.O |
| K7AntiVirus | Trojan ( 004b73e01 ) |
| K7GW | Trojan ( 004b73e01 ) |
| Malwarebytes | PUP.Optional.SweetPacks.A, PUP.BHO |
| MicroWorld-eScan | Adware.Zugo.O |
| NANO-Antivirus | Trojan.Win32.Zugo.cthcnu, Riskware.Win32.Zugo.dfshap |
| Norman | Downloader |
| Rising | PE:Trojan.Win32.Generic.14F5B8CD!351647949, NS:Malware.Install!1.9F21, NS:AdWare.Script.VBS.StartPage.g!1579249 |
| SUPERAntiSpyware | Adware.Zugo, PUP.StartNow Toolbar |
| Sophos | Generic PUA JE |
| TrendMicro-HouseCall | TROJ_GEN.F47V0528, TROJ_GEN.R06H1EF |
| VBA32 | suspected of Trojan.Downloader.gen.h |
| VIPRE | Zugo Ltd (v) (not malicious), Zugo Ltd (v) |
| nProtect | Trojan/W32.Monder.244960, Adware.Zugo.O |
* How the Detection Percentage is Calculated
The detection percentage is based on that I've collected 1003 scan results for the Zugo Ltd files. 79 of these scan results came up with some sort of detection. If you like, you can view 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:
- 46241cde5c7b500b51c5f1328228f2a9
- 00c52fd6f7886644358c539d8fc50bcc93
- 00fa860df2ac924fc31176c787706f3824