PUP.QQB.A
The detection of PUP.QQB.A on your system indicates the presence of a potentially unwanted program (PUP) that may be compromising your computer's security and performance. It is essential to understand the nature of this threat and take immediate action to remove it and prevent future infections.
Table of Contents
What Is PUP.QQB.A?
PUP.QQB.A is a type of malware that is classified as a potentially unwanted program. This category of threats includes software that may not be malicious in nature but can still cause problems for computer users. PUPs can be installed on a system without the user's knowledge or consent, often through bundled software downloads or deceptive advertising. They can collect user data, display unwanted ads, and slow down system performance.
How PUP.QQB.A Operates
PUP.QQB.A, like other PUPs, can operate in various ways to achieve its goals. It may collect user data, such as browsing history and search queries, to display targeted ads or sell the information to third parties. It can also slow down system performance by consuming system resources or installing additional software without the user's consent. In some cases, PUPs can also download and install other malware or viruses, increasing the risk of further infections.
Symptoms of Infection
The symptoms of a PUP.QQB.A infection can vary, but common signs include unwanted ads or pop-ups, slow system performance, and unfamiliar programs or toolbars installed on the system. Users may also notice changes to their browser settings, such as a new default search engine or homepage. In some cases, the system may become unstable or crash frequently, indicating a more severe infection.
- Unwanted ads or pop-ups
- Slow system performance
- Unfamiliar programs or toolbars installed on the system
- Changes to browser settings
- System instability or frequent crashes
How to Remove PUP.QQB.A
- Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for a more effective removal process.
- Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove PUP.QQB.A and any other malware that may be present.
- Uninstall any suspicious programs or software that may be related to the infection, using the "Add/Remove Programs" or "Programs and Features" control panel.
- Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any changes made by the malware.
- Reboot your system and perform another full scan to ensure that the malware has been completely removed.
Conclusion
Removing PUP.QQB.A from your system requires careful attention to detail and a thorough understanding of the removal process. By following the steps outlined above, you can effectively remove the malware and prevent future infections. It is essential to remain vigilant and take proactive measures to protect your system, such as keeping your operating system and software up to date, using reputable anti-malware tools, and being cautious when downloading software or clicking on links from unknown sources.
Analysis Report
General information
| Family Name: | PUP.QQB.A |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
a9262436daf4bd07ea662d898e58e866
SHA1:
33afb97b8b619c8e45961810a1a47448c2b2b664
SHA256:
AA923A938B7EF73DF1F59B4FDC8E7651B5259975BA361F9C33AF3E000614BDC8
File Size:
892.42 KB, 892416 bytes
|
|
MD5:
41750b11f662dad061641d887d4230aa
SHA1:
d4033bd554e06de41fe807cf0a9b41b21e1c2efb
SHA256:
CF6C0054D721AFE6BC32B205275BA50F92BD1C88A3ED8963D475D54B9B417DF9
File Size:
8.32 MB, 8323072 bytes
|
|
MD5:
a286396957ecc05dc1720b42a37b40e7
SHA1:
5201536a9ab4c8a697d00d3be3b65cdbbd21b8fe
SHA256:
BF5AAE955DD4D66794E94FD686F2DD6EE4DE2DB3F5CA56BC92515EEFFA9865E8
File Size:
9.11 MB, 9109504 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 security information
- File has TLS information
- File is 32-bit executable
- File is 64-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
Show More
- File is Native application (NOT .NET application)
- 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 |
|---|---|
| Comments | 2014-07-16 00:00:00 |
| Company Name | Tencent Inc. |
| File Description | QQ浏览器安装程序 |
| File Version |
|
| Internal Name | QQBrowser |
| Legal Copyright | Copyright © 2026 Tencent. All Rights Reserved. |
| Product Name | QQ浏览器 |
| Product Version |
|
File Traits
- AutoHK
- big overlay
- HighEntropy
- VirtualQueryEx
- WriteProcessMemory
- x64
- 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: | 17,816 |
|---|---|
| Potentially Malicious Blocks: | 300 |
| Whitelisted Blocks: | 13,066 |
| Unknown Blocks: | 4,450 |
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0
...
Data truncated
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - 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.- BadJoke.LJ
- Stealer.B
- Stealer.BC
- Stealer.BH
- Stealer.BK
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- Stealer.BPD
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| c:\users\user\appdata\roaming\tencent\qqbrowser\setuplog\2026-09-15 00_55_15.log | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\tencent\qqbrowser\setuplog\2026-09-15 22_09_25.log | Generic Write,Read Attributes |
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\microsoft\windows nt\currentversion\appcompatflags\compatibility assistant::executablestoexclude | c:\users\user\downloads\d4033bd554e06de41fe807cf0a9b41b21e1c2efb_0008323072 | RegNtPreCreateKey |
| HKCU\software\microsoft\windows nt\currentversion\appcompatflags\compatibility assistant\persisted::c:\users\user\downloads\d4033bd554e06de41fe807cf0a9b41b21e1c2efb_0008323072 | RegNtPreCreateKey | |
| HKLM\software\microsoft\windows nt\currentversion\appcompatflags\compatibility assistant::executablestoexclude | c:\users\user\downloads\5201536a9ab4c8a697d00d3be3b65cdbbd21b8fe_0009109504 | RegNtPreCreateKey |
| HKCU\software\microsoft\windows nt\currentversion\appcompatflags\compatibility assistant\persisted::c:\users\user\downloads\5201536a9ab4c8a697d00d3be3b65cdbbd21b8fe_0009109504 | 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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| Other Suspicious |
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| Process Manipulation Evasion |
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| Anti Debug |
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