B&C - 50% Detection Rate *
Did you just find a download or a file on your computer that has been digitally signed by B&C? Some of the security products refers to the detected files as Gen:Variant.Adware.Kraddare.25 and Riskware ( 0040eff71 ). The detection rate for the B&C files collected here is 50%. Please read on for more details.
You will typically see B&C when clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screencap shows:
You can view additional details from the B&C certificate with the following procedure:
- Open Windows Explorer and locate the B&C file
- Right-click on the file and select Properties
- Click on the Digital Signatures tab
- Click the View Certificate button
Here's a screenshot of a file digitally signed by B&C:
As you can see in the screencap above, Windows reports that "This digital signature is OK". This means that the file has been published by B&C 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 view the address for B&C, such as the street name, city and country.
Thawte Code Signing CA - G2 has issued the B&C certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
B&C Files
These are the B&C files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 41/55 | Skywidget(git)_u(20151123).exe |
| 37/55 | Skywidget(ping)_u(20150316).exe |
| 36/56 | Skywidget(mem)_u(20150316).exe |
| 43/56 | Skywidget(ever)_u(20151123).exe |
| 42/56 | Skywidget(ever)_u(20150421).exe |
| 1/56 | Skywidget(ping)_u(20151128).exe |
Scanner and Detection Names
Here is the detection names for the B&C files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Adware.Kraddare.FU |
| AVG | Generic.382 |
| AVware | Kraddare, Trojan.Win32.Generic!BT |
| Ad-Aware | Gen:Variant.Adware.Kraddare.25, Dropped:Application.Generic.1178440, Dropped:Application.Generic.1150493 |
| Agnitum | PUA.Kraddare! |
| AhnLab-V3 | PUP/Win32.Enumerate |
| Antiy-AVL | GrayWare[AdWare]/Win32.Kraddare.aip, GrayWare[AdWare:not-a-virus]/Win32.Kraddare |
| Arcabit | Trojan.Adware.Kraddare.25, Adware.Kraddare.FU |
| Avast | Win32:GenMaliciousA-QJN [PUP], Win32:GenMaliciousA-QJO [PUP], Win32:GenMaliciousA-BG [Trj], Win32:GenMaliciousA-MPO [PUP], Win32:GenMaliciousA-LUX [Adw] |
| Avira | ADWARE/Adware.Gen7, ADWARE/Kraddare.408296.1 |
| Baidu-International | Adware.Win32.Kraddare.HO, Adware.Win32.Kraddare.JI |
| BitDefender | Gen:Variant.Adware.Kraddare.25, Dropped:Application.Generic.1178440, Dropped:Application.Generic.1150493 |
| Bkav | W32.HfsAdware.A054, W32.HfsAdware.EECE |
| CAT-QuickHeal | PUA.Agent.013562 |
| ClamAV | Win.Adware.Kraddare-182, Win.Adware.1021253, Win.Adware.Kraddare-161 |
| Comodo | ApplicUnwnt, UnclassifiedMalware |
| Cyren | W32/Kraddare.J.gen!Eldorado, W32/Adware.OUIQ-0369, W32/Application.KPQC-0172 |
| DrWeb | Trojan.Siggen6.27124, Trojan.Adkor.65 |
| ESET-NOD32 | a variant of Win32/AdWare.Kraddare.IN, a variant of Win32/Adware.Kraddare.HO |
| Emsisoft | Gen:Variant.Adware.Kraddare.25 (B) |
| F-Prot | W32/Kraddare.J.gen!Eldorado |
| F-Secure | Gen:Variant.Adware.Kraddare, Application.Generic.1178440, Dropped:Application.Generic.1150493 |
| Fortinet | Adware/Kraddare, Riskware/Kraddare |
| GData | Gen:Variant.Adware.Kraddare.25, Dropped:Application.Generic.1178440, Dropped:Application.Generic.1150493 |
| Ikarus | AdWare.Win32.Enumerate, Win32.SuspectCrc |
| Jiangmin | AdWare/InstallMonster.wqy, AdWare/Kraddare.fy |
| K7AntiVirus | Riskware ( 0040eff71 ) |
| K7GW | Riskware ( 0040eff71 ) |
| Kaspersky | not-a-virus:AdWare.Win32.Kraddare.aip |
| Malwarebytes | Trojan.SelfDel |
| McAfee | Artemis!FBB4DFA24DC5, Artemis!5A5AA18DAF93, Artemis!949EF18660EC, Artemis!5C6068CD0CE1, Generic.dx!849ABE37C3B8 |
| McAfee-GW-Edition | BehavesLike.Win32.Downloader.hc, Generic.dx!849ABE37C3B8, BehavesLike.Win32.Mabezat.tc |
| MicroWorld-eScan | Gen:Variant.Adware.Kraddare.25, Dropped:Application.Generic.1178440, Dropped:Application.Generic.1150493 |
| NANO-Antivirus | Riskware.Win32.Kraddare.dlnsln |
| Panda | Trj/CI.A |
| Qihoo-360 | HEUR/QVM42.1.Malware.Gen, HEUR/QVM42.0.Malware.Gen, HEUR/QVM29.0.Malware.Gen |
| Sophos | Kraddare (PUA), Generic PUA OH, Generic PUA AB |
| Symantec | Trojan.Gen.2 |
| Tencent | Win32.Adware.Kraddare.Egoa, Win32.Adware.Kraddare.Swle, Win32.Adware.Kraddare.Htmc, Win32.Adware.Kraddare.Sxoi |
| TrendMicro | TROJ_GE.EC502D3A, TROJ_GE.3B5F6506, TROJ_GE.02050EE8, TROJ_GE.7DB8B421 |
| TrendMicro-HouseCall | TROJ_GE.3B5F6506, TROJ_GE.7DB8B421 |
| VBA32 | AdWare.Kraddare |
| VIPRE | Kraddare, Trojan.Win32.Generic!BT |
| ViRobot | Adware.Kraddare.550488[h] |
| Zillya | Adware.Kraddare.Win32.3493, Adware.Kraddare.Win32.2673, Adware.Kraddare.Win32.2769 |
| nProtect | Adware.Kraddare.FU |
* How the Detection Percentage is Calculated
The detection percentage is based on that I've gathered 995 scan results for the B&C files. 497 of these scan results 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:
- 6e3cb1c5f365ee91b616260780245e0f