Yang Liwei - 19% Detection Rate *
Did you just stumble upon a download or a file on your computer that has been digitally signed by Yang Liwei? Some of the security products refers to the detected files as Trojan.Win32.Generic!BT and Adware.Agent.QLQ. The detection rate for the Yang Liwei files collected here is 19%. Please read on for more details.
You will probably notice Yang Liwei when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view additional details from the Yang Liwei certificate with the following steps:
- Open up Windows Explorer and locate the Yang Liwei file
- Right-click on the file and select Properties
- Click the Digital Signatures tab
- Click the View Certificate button
Here is a screenshot of a file that has been signed by Yang Liwei:
As you can see in the screencap above, Windows states that "This digital signature is OK". This implies that the file has been published by Yang Liwei 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, and so on. You can also examine the address for Yang Liwei, such as the street name, city and country.
WoSign Class 2 Code Signing CA has issued the Yang Liwei certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
Yang Liwei Files
These are the Yang Liwei files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 3/57 | crsvc.exe |
| 1/56 | DNSSVC.exe |
| 1/54 | cert.exe |
| 1/56 | anbd.exe |
| 2/54 | ccec.exe |
| 2/54 | ccec.exe |
| 1/54 | ceatrl.exe |
| 15/56 | ghost3.exe |
| 2/52 | wnsins.exe |
| 13/57 | chiarb.exe |
| 30/56 | autoupdate.exe |
| 23/56 | cees2.exe |
| 26/57 | celp.exe |
| 32/55 | bdrd.exe |
| 36/55 | chverdt1.exe |
| 12/54 | ggstht.exe |
| 0/56 | rbt.exe |
| 0/54 | anbd.exe |
| 0/56 | wrg.exe |
| 0/55 | lc.exe |
Scanner and Detection Names
Here is the detection names for the Yang Liwei files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Adware.Agent.QLQ |
| AVG | Generic7.FCN, Generic7.NXJ, Generic_r.HJQ, PSW.KeyLogger.DIQ, Generic_r.BEE |
| AVware | Trojan.Win32.Generic!BT |
| Ad-Aware | Adware.Agent.QLR, Adware.Agent.QLQ |
| AegisLab | Troj.Agent.Vpkr!c, Psw.Keylogger.Diq!c, Suspicious.Cloud.Gen!c |
| AhnLab-V3 | PUP/Win32.OnlineGame, PUP/Win32.Downloader, PUP/Win32.Chindo |
| Antiy-AVL | GrayWare[AdWare:not-a-virus]/Win32.Agent, Trojan/Generic.ASMalwNS.4BA4, GrayWare[AdWare:not-a-virus,HEUR]/Win32.ExtCrome |
| Arcabit | Adware.Agent.QLR, Adware.Agent.QLQ |
| Avast | Win32:Malware-gen, Win32:Adware-gen [Adw] |
| Avira | ADWARE/Agent.281600, TR/Agent.vpkr, SPR/KeyLogger.521456, SPR/Agent.5747, TR/Agent.tfpi |
| Baidu-International | Adware.Win32.Agent.NPE |
| BitDefender | Adware.Agent.QLR, Adware.Agent.QLQ |
| Bkav | W32.Clodf2e.Trojan.26f5, W32.Clod406.Trojan.def5, W32.Clodba4.Trojan.5102 |
| CAT-QuickHeal | AdWare.Agent.r5 (Not a Virus), AdWare.ExtCrome.r5 (Not a Virus), Adware.ExtChrome.r5 (Not a Virus) |
| ClamAV | Win.Trojan.Agent-1396221, Win.Trojan.Agent-1394693, Win.Trojan.Agent-1394694, Win.Trojan.Agent-1396211 |
| Comodo | UnclassifiedMalware, TrojWare.Win32.Agent.WQ, TrojWare.Win32.UMal.~A |
| Cyren | W32/Trojan.QLKL-0971, W32/Trojan.WMHN-0592, W32/Adware.SKYJ-7849, W32/Trojan.NHVT-3317 |
| DrWeb | Adware.Mutabaha.1174, Adware.Mutabaha.1168 |
| ESET-NOD32 | a variant of Win32/Adware.Agent.NPE, a variant of Win32/Agent.XUT |
| Emsisoft | Adware.Chindo (A), Adware.Agent.QLR (B), Adware.Agent.QLQ (B) |
| F-Secure | Adware.Agent.QLR, Adware.Agent.QLQ |
| Fortinet | Adware/ExtCrome |
| GData | Win32.Trojan.Agent.SFABZJ, Adware.Agent.QLQ |
| Ikarus | Trojan.Win32.Agent |
| Jiangmin | Adware.Agent.dvk, AdWare.ExtCrome.k |
| K7AntiVirus | Adware ( 004d93311 ), Unwanted-Program ( 004de8001 ), Trojan ( 004de1df1 ), Trojan ( 004dd9e01 ), Trojan ( 004dd8ca1 ) |
| K7GW | Adware ( 004d93311 ), Unwanted-Program ( 004de8001 ), Trojan ( 004de1df1 ), Trojan ( 004dd9e01 ), Trojan ( 004dd8ca1 ) |
| Kaspersky | not-a-virus:HEUR:AdWare.Win32.ExtCrome.gen, not-a-virus:AdWare.NSIS.Agent.id, not-a-virus:AdWare.Win32.ExtCrome.xxo |
| Malwarebytes | PUP.Optional.YangLiwei |
| McAfee | Artemis!28EE5C27FB42, Artemis!E1FC6A46021F, Artemis!282D30C186A5, Artemis!5286D42A2173, Artemis!4A75EC49219B, Artemis!B7AEDCA41DB6 |
| McAfee-GW-Edition | BehavesLike.Win32.Suspicious.gc, Artemis, BehavesLike.Win32.Tool.tc, BehavesLike.Win32.Suspicious.hc, Artemis!PUP, BehavesLike.Win32.BadFile.hc |
| MicroWorld-eScan | Adware.Agent.QLR, Adware.Agent.QLQ |
| NANO-Antivirus | Riskware.Win32.Agent.dzfjsk, Riskware.Win32.Mutabaha.ecgyzq |
| Panda | Generic Suspicious, Trj/CI.A |
| Qihoo-360 | HEUR/QVM10.1.Malware.Gen, HEUR/QVM42.1.Malware.Gen |
| Rising | Trojan.Agent!8.B1E-QveObj8t2QN (Cloud), Trojan.Agent!8.B1E-rkafzNphyzC (Cloud), Trjoan.Generic-foAZcLzOr9Q (Cloud), Trjoan.Generic-TT4hoTgMpx (Cloud), Trjoan.Generic-XkOPPcWdPnT (Cloud) |
| SUPERAntiSpyware | PUP.YangLiwei/Variant |
| Sophos | Mal/Generic-S, Generic PUA CD (PUA), Generic PUA BP (PUA), Generic PUA BI (PUA), Generic PUA HC (PUA) |
| Symantec | PUA.Downloader, SAPE.Heur.B7267, Trojan.Gen.2, Suspicious.Cloud.9, Trojan.Startpage |
| Tencent | Win32.Adware.Extcrome.Llre, Win32.Adware.Extcrome.Aliq, Nsis.Adware.Agent.Hpsf, Win32.Trojan.Falsesign.Sunu, Win32.Adware.Extcrome.Pegb, Win32.Adware.Extcrome.Pgws |
| TrendMicro | ADW_STARTPAGE, TROJ_GEN.R0EBC0OLF15, TROJ_GEN.R0EBC0EDL16, TROJ_GEN.R0EBC0ODD16, TROJ_GEN.R070C0VE616, TROJ_GEN.R070C0EDR16 |
| TrendMicro-HouseCall | ADW_STARTPAGE |
| VBA32 | suspected of Trojan.Downloader.gen.h, AdWare.Agent |
| VIPRE | Trojan.Win32.Generic!BT |
| ViRobot | Adware.Agent.286664[h], Trojan.Win32.Z.Agent.521472[h], Adware.Agent.119248.B[h], Trojan.Win32.Z.Yangliwei.1018144[h] |
| Yandex | PUA.ExtCrome! |
| Zillya | Downloader.LMN.Win32.387872, Trojan.Agent.Win32.632466, Trojan.Agent.Win32.671667, Trojan.Agent.Win32.674372 |
| nProtect | Adware.Agent.QLR, Adware.Agent.QLQ |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I have collected 1271 scan results for the Yang Liwei files. 245 of these scan reports 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:
- 5552975c22fd2bcaefb8f50b2806ede2