ADW_OPENCANDY.GB
Riskware.Win32.OpenCandy.dyxdre (NANO-Antivirus); OpenCandy(PUA) (Sophos); Win32.Adware.OpenCandy.C (GData); Adware.OpenCandy.158 (DrWeb)
Windows
Threat Type: Adware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This adware may be unknowingly downloaded by a user while visiting malicious websites. It may be manually installed by a user.
It does not have any propagation routine.
It does not have any backdoor routine.
It does not have any downloading capability.
It does not have any information-stealing capability.
It connects to certain websites to send and receive information. However, as of this writing, the said sites are inaccessible.
TECHNICAL DETAILS
Arrival Details
This adware may be unknowingly downloaded by a user while visiting malicious websites.
It may be manually installed by a user.
This malware arrives via the following means:
- It may come bundled with third-party application installers.
Propagation
This adware does not have any propagation routine.
Backdoor Routine
This adware does not have any backdoor routine.
Dropping Routine
This adware drops the following files:
- %User Temp%\is-{random}.tmp\{malware file name}.tmp
- %User Temp%\is-{random}.tmp\OCSetupHlp.dll – detected as ADW_OPENCANDY
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Download Routine
This adware does not have any downloading capability.
Information Theft
This adware does not have any information-stealing capability.
Other Details
This adware connects to the following website to send and receive information:
- opencandy.{BLOCKED}p.net
However, as of this writing, the said sites are inaccessible.
NOTES:
Once the file is executed, it installs the following third-party applications:
- WinSCP
- Putty
It does not have rootkit capabilities.
It does not exploit any vulnerability.
SOLUTION
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Identify and terminate files detected as ADW_OPENCANDY.GB
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
Remove the malware/grayware file dropped/downloaded by ADW_OPENCANDY.GB. (Note: Please skip this step if the threat(s) listed below have already been removed.)
Step 5
Scan your computer with your Trend Micro product to delete files detected as ADW_OPENCANDY.GB. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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