Beijing Caiyunshidai Technology Co., Ltd. - 5% Detection Rate *

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:

Screenshot where Beijing Caiyunshidai Technology Co., Ltd. appears as the verified publisher in the UAC dialog

You can also view the Beijing Caiyunshidai Technology Co., Ltd. certificate with the following procedure:

  1. Open Windows Explorer and locate the Beijing Caiyunshidai Technology Co., Ltd. file
  2. Right-click on the file and select Properties
  3. Click on the Digital Signatures tab
  4. Click on the View Certificate button

Here's a screenshot of a file signed by Beijing Caiyunshidai Technology Co., Ltd.:

Screenshot of the Beijing Caiyunshidai Technology Co., Ltd. certificate

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.

Beijing Caiyunshidai Technology Co., Ltd. Files

The following are the Beijing Caiyunshidai Technology Co., Ltd. files I have gathered, thanks to the FreeFixer users.

Detection RatioFile Name
2/56bugreport.exe
1/57ckgCommunityService.exe
4/57thlrprservice.exe
1/58bugreport.exe
3/57bugreport.exe
2/56Woheghservertask.exe
3/57muftionSysTsk.exe
7/57Thlrprtask.exe
3/57poletherclnsrv.exe32
3/57ghabuk.exe
4/56reekge.exe
5/56lrcreportsservice.exe
3/56woheghserverservice.exe
3/57ckgCommunityTask.exe
12/56twsHlpTsk.exe
0/57lrcReportsTask.exe
0/57x64explibss.dll

Scanner and Detection Names

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.

ScannerDetection Names
AVGDownloader.Generic_r.WS
AegisLabTroj.Downloader.Generic!c, AdWare.W32.Agent.mjlV
BaiduWin32.Trojan.WisdomEyes.151026.9950.9998
CyrenW32/S-4ad9e2ff!Eldorado
DrWebAdware.Mutabaha.1307, Adware.Mutabaha.1167, Adware.Mutabaha.1205, Adware.Mutabaha.1284
ESET-NOD32a variant of Win32/Obfuscated.NGE, a variant of Win32/ELEX.IA potentially unwanted, a variant of Win32/Obfuscated.NGC
F-ProtW32/S-4ad9e2ff!Eldorado
GDataWin32.Trojan.Agent.33XA3V
Ikarusnot-a-virus:Downloader.YeSearch, BHO.Win32.Sasquor
McAfeeArtemis!93ED86C4E23F, Artemis!0F0DD4C495AE
McAfee-GW-EditionBehavesLike.Win32.AdwareDoma.dh, Artemis
MicrosoftBrowserModifier:Win32/Sasquor
PandaTrj/CI.A
Qihoo-360HEUR/QVM10.1.Malware.Gen, HEUR/QVM10.1.0000.Malware.Gen
RisingMalware.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)
SymantecPUA.Downloader
TencentWin32.Trojan.Malware.Xdbz

* How the Detection Percentage is Calculated

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.

Analysis Details

The analysis is based on certificates with the following serial numbers:

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