Did you just run into a download or a file on your computer that is digitally signed by Beijing Caiyunshidai Technology Co., Ltd.? Some of the security products refers to the detected files as HEUR/QVM10.1.Malware.Gen and not-a-virus:Downloader.YeSearch. The detection rate for the Beijing Caiyunshidai Technology Co., Ltd. files collected here is 5%. Please read on for more details.
You will probably see Beijing Caiyunshidai Technology Co., Ltd. when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screengrab shows:
You can also view the Beijing Caiyunshidai Technology Co., Ltd. certificate with the following procedure:
Here's a screenshot of a file signed by Beijing Caiyunshidai Technology Co., Ltd.:
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 Beijing Caiyunshidai Technology Co., 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 see the address for Beijing Caiyunshidai Technology Co., Ltd., such as the street name, city and country.
thawte SHA256 Code Signing CA has issued the Beijing Caiyunshidai Technology Co., Ltd. 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 Beijing Caiyunshidai Technology Co., Ltd. files I have gathered, thanks to the FreeFixer users.
Detection Ratio | File Name |
---|---|
2/56 | bugreport.exe |
1/57 | ckgCommunityService.exe |
4/57 | thlrprservice.exe |
1/58 | bugreport.exe |
3/57 | bugreport.exe |
2/56 | Woheghservertask.exe |
3/57 | muftionSysTsk.exe |
7/57 | Thlrprtask.exe |
3/57 | poletherclnsrv.exe32 |
3/57 | ghabuk.exe |
4/56 | reekge.exe |
5/56 | lrcreportsservice.exe |
3/56 | woheghserverservice.exe |
3/57 | ckgCommunityTask.exe |
12/56 | twsHlpTsk.exe |
0/57 | lrcReportsTask.exe |
0/57 | x64explibss.dll |
Here is the detection names for the Beijing Caiyunshidai Technology Co., Ltd. files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
Scanner | Detection Names |
---|---|
AVG | Downloader.Generic_r.WS |
AegisLab | Troj.Downloader.Generic!c, AdWare.W32.Agent.mjlV |
Baidu | Win32.Trojan.WisdomEyes.151026.9950.9998 |
Cyren | W32/S-4ad9e2ff!Eldorado |
DrWeb | Adware.Mutabaha.1307, Adware.Mutabaha.1167, Adware.Mutabaha.1205, Adware.Mutabaha.1284 |
ESET-NOD32 | a variant of Win32/Obfuscated.NGE, a variant of Win32/ELEX.IA potentially unwanted, a variant of Win32/Obfuscated.NGC |
F-Prot | W32/S-4ad9e2ff!Eldorado |
GData | Win32.Trojan.Agent.33XA3V |
Ikarus | not-a-virus:Downloader.YeSearch, BHO.Win32.Sasquor |
McAfee | Artemis!93ED86C4E23F, Artemis!0F0DD4C495AE |
McAfee-GW-Edition | BehavesLike.Win32.AdwareDoma.dh, Artemis |
Microsoft | BrowserModifier:Win32/Sasquor |
Panda | Trj/CI.A |
Qihoo-360 | HEUR/QVM10.1.Malware.Gen, HEUR/QVM10.1.0000.Malware.Gen |
Rising | Malware.Undefined!8.C-VYKcDyYGSf (Cloud), PE:Malware.Generic/QRS!1.9E2D [F], Malware.Undefined!8.C-MpmrKaqosWF (Cloud), PE:Malware.RDM.28!5.22 [F], Trojan.Obfuscated!8.4C-88q4vA4HP8J (Cloud), PUA.ELEX!8.E6-R8s1nFQz7DO (Cloud), Malware.BrowserModifier!8.282-JN9TGaWPgGR (Cloud) |
Symantec | PUA.Downloader |
Tencent | Win32.Trojan.Malware.Xdbz |
The detection percentage is based on that I have gathered 1021 scan results for the Beijing Caiyunshidai Technology Co., Ltd. files. 56 of these scan reports came up with some sort of detection. You can view the full details of the scan reports by examining the files listed above.
The analysis is based on certificates with the following serial numbers: