PUP.WinVNC.B
The detection of PUP.WinVNC.B on your system indicates the presence of a potentially unwanted program (PUP) that may compromise your computer's security and performance. It is essential to understand the nature of this threat and take immediate action to remove it to prevent potential harm.
Table of Contents
What Is PUP.WinVNC.B?
PUP.WinVNC.B is a type of potentially unwanted program that may have been installed on your system without your knowledge or consent. PUPs are software applications that may exhibit undesirable behavior, such as displaying unwanted advertisements, collecting user data, or installing additional malware. While PUPs are not typically as malicious as other types of malware, they can still pose a significant risk to your system's security and stability.
How PUP.WinVNC.B Operates
PUP.WinVNC.B, like other PUPs, may operate by exploiting vulnerabilities in your system or by using social engineering tactics to trick you into installing it. Once installed, it may connect to remote servers to download additional components or receive instructions from its creators. PUPs can also modify system settings, install additional software, or display unwanted advertisements, which can lead to a range of problems, including system crashes, slow performance, and data breaches.
Symptoms of Infection
If your system is infected with PUP.WinVNC.B, you may experience a range of symptoms, including unwanted advertisements, pop-ups, or browser redirects. Your system may also become slower, and you may notice unusual network activity or suspicious processes running in the background. In some cases, PUPs can also collect user data, such as browsing history, search queries, or personal information, which can be used for malicious purposes.
- Unwanted advertisements or pop-ups
- Browser redirects or changed homepage
- Slow system performance
- Unusual network activity
- Suspicious processes running in the background
How to Remove PUP.WinVNC.B
- Restart your system in Safe Mode with Networking to prevent the PUP from loading and to allow you to remove it more easily.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any malicious components.
- Uninstall any suspicious programs or applications that may be related to the PUP.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any changes made by the PUP.
- Reboot your system and perform another scan with your anti-malware tool to ensure that the PUP has been completely removed.
Conclusion
Removing PUP.WinVNC.B from your system is crucial to prevent potential harm and protect your personal data. By following the steps outlined above, you can effectively remove the PUP and restore your system to its normal state. It is essential to remain vigilant and take proactive measures to prevent future infections, such as keeping your operating system and software up to date, using strong antivirus software, and being cautious when installing new applications or clicking on links from unknown sources.
Analysis Report
General information
| Family Name: | PUP.WinVNC.B |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
2a7aafbc0900bf0976fc20fecee214f8
SHA1:
1a8f2da02ed05d718f8d26d18ee7867ec8202b52
SHA256:
A2E675A609F057707F44BC35FBBDD7F0966A829EB2711BBE6B96D83EDCB5E0AB
File Size:
14.34 KB, 14336 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have security information
- File has exports table
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Company Name | AT&T Research Labs Cambridge |
| File Description | VNC hooks DLL for Win32 |
| File Version | 3, 3, 3, 6 |
| Internal Name | VNCHooks |
| Legal Copyright | Copyright AT&T Research Labs Cambridge© 1997-2000 |
| Original Filename | VNCHooks.dll |
| Product Name | AT&T Research Labs Cambridge - VNCHooks |
| Product Version | 3, 3, 3, 6 |
File Traits
- dll
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 30 |
|---|---|
| Potentially Malicious Blocks: | 10 |
| Whitelisted Blocks: | 20 |
| Unknown Blocks: | 0 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_getupdaterect | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_timer | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_keypress | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_lbuttonup | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_mbuttonup | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_rbuttonup | RegNtPreCreateKey | |
| HKCU\software\orl\vnchooks\application_prefs\rundll32.exe::use_deferral | RegNtPreCreateKey |
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Syscall Use |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Anti Debug |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\1a8f2da02ed05d718f8d26d18ee7867ec8202b52_0000014336.,LiQMAxHB
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