PUP.Koal
The detection of PUP.Koal on your system indicates the presence of a potentially unwanted program that may be causing issues with your computer's performance and security. It is essential to understand the nature of this threat and take appropriate steps to remove it to prevent any potential harm.
Table of Contents
What Is PUP.Koal?
PUP.Koal is a type of potentially unwanted program that may have been installed on your system without your knowledge or consent. These types of programs are often bundled with other software or downloaded from untrusted sources, and they can cause a range of problems, including slowed system performance, unwanted pop-ups and ads, and even security vulnerabilities. PUP.Koal is not a specific malware family, but rather a detection name that indicates the presence of a potentially unwanted program.
How PUP.Koal Operates
Potentially unwanted programs like PUP.Koal often operate by installing themselves on a system and then running in the background, consuming system resources and potentially collecting user data. They may also modify system settings, such as changing the default search engine or homepage, and may even install additional software or toolbars without the user's knowledge or consent. In some cases, PUPs may also be used to distribute malware or other types of malicious software.
Symptoms of Infection
If your system is infected with PUP.Koal, you may notice a range of symptoms, including slowed system performance, unwanted pop-ups and ads, and changes to your system settings. You may also notice that your browser is redirecting to unfamiliar websites or that you are being prompted to install additional software. In some cases, you may even notice that your system is crashing or freezing frequently.
- Unwanted pop-ups and ads
- Changes to system settings, such as default search engine or homepage
- Slowed system performance
- Browser redirects to unfamiliar websites
- Prompts to install additional software
- System crashes or freezes
How to Remove PUP.Koal
- Boot your system in Safe Mode with Networking to prevent PUP.Koal from running and to allow for a more thorough removal process.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect and remove any malicious software, including PUP.Koal.
- Uninstall any suspicious programs that may be related to PUP.Koal, using the Add/Remove Programs feature in your system's Control Panel.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any changes made by PUP.Koal.
- Reboot your system and perform a follow-up scan with your anti-malware tool to ensure that PUP.Koal has been completely removed.
Conclusion
Removing PUP.Koal from your system is essential to prevent any potential harm and to restore your system's performance and security. By following the steps outlined above, you can effectively remove PUP.Koal and prevent any further issues. It is also important to take steps to prevent future infections, such as being cautious when downloading software, avoiding untrusted sources, and keeping your operating system and software up to date. By taking these precautions, you can help to protect your system and your personal data from potentially unwanted programs like PUP.Koal.
Analysis Report
General information
| Family Name: | PUP.Koal |
|---|---|
| Signature status: | Root Not Trusted |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
07f27950a9ad26fed204d4dd8df70ec8
SHA1:
8c5494c0bb24806e18cdf4c45bf6cbc1f54846a8
SHA256:
D226A568444644E27FD442FAD98CCCC757CDE26939B6328A82B4A0BB72AAE8DC
File Size:
2.42 MB, 2420396 bytes
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MD5:
d8140940b71198f3133b4a8b6346a4a2
SHA1:
b3619801834117904534979d1716ddd47ba37a06
SHA256:
7762975EE89D9828CC69FADB657360977DD2399C37B8DC54947924CCF8462171
File Size:
73.66 KB, 73664 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 exports table
- File doesn't have relocations information
- File doesn't have security information
- File is 32-bit executable
- File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
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- 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.
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 | Microsoft Corporation |
| File Description |
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| File Version |
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| Internal Name |
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| Legal Copyright |
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| Original Filename |
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| Product Name |
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| Product Version |
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| Special Build | 102 |
Digital Signatures
Digital Signatures
This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.| Signer | Root | Status |
|---|---|---|
| 上海格尔软件股份有限公司 | Class 3 Public Primary Certification Authority | Root Not Trusted |
File Traits
- big overlay
- 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: | 133 |
|---|---|
| Potentially Malicious Blocks: | 0 |
| Whitelisted Blocks: | 133 |
| Unknown Blocks: | 0 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Similar Families
Similar Families
This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.- Agent.ACB
- Agent.IFSB
- Agent.XFG
- Agent.XXS
- Autorun.SA
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- Kryptik.DGE
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 |
|---|---|
| Cert Store Read |
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