Trojan.Zlob.C
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Threat Level: | 90 % (High) |
| Infected Computers: | 3 |
| First Seen: | July 24, 2009 |
| Last Seen: | April 10, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Zlob.C on your system indicates a potential security threat that requires immediate attention. This detection name suggests a type of malicious software, but without more specific information, it's essential to approach removal and system cleaning with a general understanding of how such threats operate and the steps needed to mitigate them.
Table of Contents
What Is Trojan.Zlob.C?
Trojan.Zlob.C, as indicated by its name, is likely a variant of Trojan horse malware. Trojan horses are malicious programs that disguise themselves as legitimate software. Once installed, they can cause significant harm by stealing data, installing additional malware, or providing unauthorized access to the infected system. The specifics of Trojan.Zlob.C's behavior and impact can vary, but its classification as a Trojan suggests it is designed to deceive users into installing it, after which it can execute its malicious payload.
How Trojan.Zlob.C Operates
Malware like Trojan.Zlob.C typically operates by exploiting vulnerabilities in software or human behavior. It may spread through various means, including but not limited to, email attachments, downloads from untrusted websites, or infected software installations. Once installed, it can communicate with its command and control servers to receive instructions, which might include stealing sensitive information, downloading additional malicious software, or using the infected computer for malicious activities such as spamming or participating in botnets.
Symptoms of Infection
Symptoms of an infection can vary widely but may include unexpected changes to your system, such as new programs or icons appearing, changes in browser settings, or the presence of unwanted toolbars. You might also experience system slowdowns, frequent crashes, or pop-ups and advertisements appearing at random times. In some cases, the infection might not display obvious symptoms, making it difficult to detect without proper scanning tools.
How to Remove Trojan.Zlob.C
- Boot into Safe Mode with Networking: This will limit the malware's ability to interfere with the removal process. To do this, restart your computer and press the key that opens the boot menu (this key varies by manufacturer but is often F12, F2, or Del). Select the option to boot into Safe Mode with Networking.
- Perform a Full Scan: Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. This can help identify and remove all components of the malware.
- Uninstall Suspicious Programs: Go through the list of installed programs on your computer and uninstall any that you do not recognize or that were installed around the time you suspect the infection occurred.
- Reset Your Browsers: Malware often targets browsers to change settings or install malicious extensions. Resetting browsers like Chrome, Firefox, or Edge to their default settings can help remove these changes. Be aware that this will also remove any saved passwords, extensions, and other customized settings.
- Reboot and Re-scan: After completing the above steps, reboot your computer and perform another scan with your anti-malware tool to ensure that all malware components have been removed.
Conclusion
Removing Trojan.Zlob.C and restoring your system's security requires careful and methodical steps. It's crucial to stay vigilant and ensure that your system and all software are up to date to prevent future infections. Regularly backing up important data and using reputable security software can also help protect against malware threats. If you're unsure about any part of the removal process, consider seeking help from a professional to ensure your system is thoroughly cleaned and secured.
Aliases
15 security vendors flagged this file as malicious.
| Antivirus Vendor | Detection |
|---|---|
| Symantec | Downloader.Zlob!gen.3 |
| Sunbelt | Adware.NetAdware.Gen |
| Sophos | Troj/BHO-JA |
| Panda | Adware/VapSup |
| NOD32 | probably a variant of Win32/Adware.Vapsup |
| Microsoft | Trojan:Win32/Zlob.C |
| McAfee-GW-Edition | Ad-Spyware.AdSpy.Gen |
| McAfee | AdClicker-FC |
| Ikarus | Trojan.Win32.Vapsup |
| Fortinet | W32/Vapsup.FDN!tr |
| F-Secure | Trojan.Win32.Vapsup.fdn |
| eTrust-Vet | Win32/Pripecs!generic |
| Comodo | TrojWare.Win32.Vapsup.fdn |
| ClamAV | Trojan.Zlob-5238 |
| CAT-QuickHeal | Trojan.Vapsup.fdn |
File System Details
| # | File Name | MD5 |
Detections
Detections: The number of confirmed and suspected cases of a particular threat detected on
infected computers as reported by SpyHunter.
|
|---|---|---|---|
| 1. | pvnsmfor.dll | cd239a959acc18dbced33bc5338a65f9 | 0 |
Analysis Report
General information
| Family Name: | Trojan.Zlob.C |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
c625c1772eb7e538766f2145a3f00900
SHA1:
0f920c0410af21158c28709219bd4c37418ffd91
SHA256:
2555AFE1E7CB2234CD2A4B2C04268B4CEFAE86C2CD58E9298B0CF0979FFE6DE6
File Size:
12.29 KB, 12288 bytes
|
|
MD5:
0c7f6d42c16f2f0e8c9ca2377e13fba9
SHA1:
ce4e99556618dc67dd4fe43e5efcf046439b495d
SHA256:
F0ECB34BFB2FA47B597CBDE8FE1AD4BF0120E4D53E6F45D0EAF31AFC0D9AE471
File Size:
25.60 KB, 25600 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have exports table
- File doesn't have relocations information
- File doesn't have resources
- File doesn't have security information
- 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)
Show More
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
File Traits
- No Version Info
- ntdll
- 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: | 103 |
|---|---|
| Potentially Malicious Blocks: | 0 |
| Whitelisted Blocks: | 27 |
| Unknown Blocks: | 76 |
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 |
|---|---|---|
| HKLM\software\wow6432node\microsoft\directdraw\mostrecentapplication::name | ce4e99556618dc67dd4fe43e5efcf046439b495d_0000025600 | RegNtPreCreateKey |
| HKLM\software\wow6432node\microsoft\directdraw\mostrecentapplication::id | 훬㟬 | RegNtPreCreateKey |
