Yula - 24% Detection Rate *
Did you just find a download or a file on your computer that is digitally signed by Yula? Some of the security products refers to the detected files as Zula and Adware.NetFilter.C. The detection rate for the Yula files collected here is 24%. Please read on for more details.
You will typically see Yula when clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can also view the Yula certificate with the following procedure:
- Open Windows Explorer and locate the Yula file
- Right-click the file and select Properties
- Click on the Digital Signatures tab
- Click the View Certificate button
Here is a screencap of a file signed by Yula:
As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by Yula and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot above, you can see 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 examine the address for Yula, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Yula certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
Yula Files
These are the Yula files I have collected, thanks to the FreeFixer users.
Scanner and Detection Names
Here is the detection names for the Yula files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Adware.NetFilter.C |
| AVG | Zula, AdPlugin.SJF |
| AVware | Yontoo (fs), Trojan.Win32.Generic!BT |
| Ad-Aware | Adware.NetFilter.C, Gen:Variant.Adware.SwiftBrowse.1 |
| AegisLab | Adware.Netfilter.Gen!c |
| Agnitum | Trojan.BPlug!, PUA.Yotoon!, PUA.Agent! |
| AhnLab-V3 | Win-PUP/BrowseFox.Gen, Adware/Win32.SwiftBrowse, Trojan/Win64.SwiftBrowse.N1210463604 |
| Antiy-AVL | GrayWare[AdWare:not-a-virus]/Win32.Kranet, Trojan/Win32.TSGeneric |
| Arcabit | Adware.NetFilter.C |
| Avast | Win32:BrowseFox-FF [PUP], Win32:Malware-gen, Win32:Adware-BYZ [PUP] |
| Avira | ADWARE/BrowseFox.Gen7 |
| Baidu | Win32.Adware.BrowseFox.e |
| Baidu-International | Adware.Win32.BrowseFox.D, Adware.Win32.BrowseFox.bH, Adware.Win32.BrowseFox.BH, Adware.MSIL.BrowseFox.BG |
| BitDefender | Adware.NetFilter.C, Gen:Variant.Adware.SwiftBrowse.1 |
| Bkav | W32.HfsAdware.8B48, W32.EmacutAB.Trojan |
| CAT-QuickHeal | PUA.Yula.Gen |
| ClamAV | Win.Adware.Swiftbrowse-79, Win.Adware.Swiftbrowse-8, Win.Adware.Agent-22685, Win.Adware.Swiftbrowse-84 |
| Comodo | TrojWare.Win32.AltBrowse.IZZV, UnclassifiedMalware |
| Cyren | W64/A-e967bae2!Eldorado |
| DrWeb | Trojan.BPlug.123, Trojan.BPlug.95, Trojan.BPlug.281, Trojan.Yontoo.1734 |
| ESET-NOD32 | a variant of Win32/BrowseFox.H, probably a variant of MSIL/BrowseFox.G, Win32/BrowseFox.V, a variant of Win64/BrowseFox.BH potentially unwanted |
| Emsisoft | Adware.NetFilter.C (B), Gen:Variant.Adware.SwiftBrowse.1 (B) |
| F-Prot | W32/A-c99f2d8b!Eldorado, W32/A-1c37adca!Eldorado, W64/A-e967bae2!Eldorado |
| F-Secure | Adware.NetFilter.C, Gen:Variant.Adware.SwiftBrowse.1 |
| GData | Adware.NetFilter.C, Gen:Variant.Adware.SwiftBrowse.1 |
| Ikarus | AdWare.SpadeCast, PUA.Elex |
| Jiangmin | AdWare/Yotoon.l, AdWare/Yotoon.m, AdWare/Yotoon.e |
| Kaspersky | not-a-virus:AdWare.Win32.Yotoon.bfm, not-a-virus:NetTool.Win64.NetFilter.is |
| Malwarebytes | PUP.Optional.Yulasee.A, PUP.Optional.BrowseFox |
| McAfee | Artemis!F6D96F0D7965, Artemis!D15131D8C43D, Artemis!FCFD4471E93D, Artemis!364F6A7A1AAA, Artemis!EAC21F6B06BB, Artemis!CA6475A96F1D, Artemis!B75E633C31D7, Artemis!F5DD0B788A86, Artemis!69DD631BEBEA, Artemis!A099E1E113F3 |
| McAfee-GW-Edition | Artemis!F6D96F0D7965, Artemis, Artemis!EAC21F6B06BB, Artemis!Trojan, Artemis!B75E633C31D7, Artemis!F5DD0B788A86, Artemis!69DD631BEBEA, BehavesLike.Win64.PUPAmonetize.qm |
| MicroWorld-eScan | Adware.NetFilter.C, Gen:Variant.Adware.SwiftBrowse.1 |
| NANO-Antivirus | Riskware.Win32.Yotoon.ddghtt, Riskware.Win32.Kranet.dgiwfc, Riskware.Win64.BPlug.dvtorg |
| Panda | Trj/CI.A |
| Qihoo-360 | Win32/Virus.Adware.708 |
| SUPERAntiSpyware | Adware.NetFilter/Variant |
| Sophos | BrowseSmart, Generic PUA CI, BrowseSmart (PUA) |
| Symantec | Yontoo.C, Trojan.ADH.2, PUA.Yontoo.C |
| Tencent | Win32.Adware.Yotoon.Hxgn |
| TrendMicro | ADW_BROWSEFOX, TROJ_SPNV.03KB14 |
| TrendMicro-HouseCall | Suspicious_GEN.F47V0711, Suspicious_GEN.F47V0621, Suspicious_GEN.F47V0704, ADW_BROWSEFOX, Suspicious_GEN.F47V0721, Suspicious_GEN.F47V0629, TROJ_GEN.F47V0528, PUA_BROWSEFOX |
| VBA32 | AdWare.Win64.Yotoon, AdWare.Kranet |
| VIPRE | Trojan.Win32.Generic!BT, Yontoo (fs), Adware.Agent |
| ViRobot | Trojan.Win32.S.Agent.61104.F[h] |
| Yandex | Trojan.BPlug! |
| Zillya | Adware.Yotoon.Win64.1, Adware.Yotoon.Win64.3 |
| nProtect | Adware.NetFilter.C |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I have collected 789 scan reports for the Yula files. 186 of these scan results came up with some sort of detection. 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:
- 4b2c13d47b877663487d003c021e7110