Trojan.Patcher.A
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.
| Popularity Rank: | 3,486 |
| Threat Level: | 80 % (High) |
| Infected Computers: | 31,808 |
| First Seen: | February 13, 2012 |
| Last Seen: | October 4, 2026 |
| OS(es) Affected: | Windows |
The detection of Trojan.Patcher.A on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise the security and integrity of your computer, and it's essential to understand its nature and take steps to remove it to prevent further damage.
Table of Contents
What Is Trojan.Patcher.A?
Trojan.Patcher.A is a type of Trojan horse malware, which is a broad category of malicious software that disguises itself as legitimate or harmless. The name "Trojan.Patcher.A" suggests that it may be related to patching or modifying system files, but without more specific information, it's difficult to determine its exact purpose or behavior. Generally, Trojans are designed to allow unauthorized access to a computer system, steal sensitive information, or disrupt normal system operation.
How Trojan.Patcher.A Operates
Like other Trojans, Trojan.Patcher.A likely operates by exploiting vulnerabilities in software or tricking users into installing it. Once installed, it may communicate with its creators or other malicious servers to receive instructions or transmit stolen data. It could also modify system settings, install additional malware, or create backdoors for future access. The exact mechanisms of Trojan.Patcher.A are not specified, but its presence indicates a significant security risk that needs to be addressed.
Symptoms of Infection
Identifying a Trojan infection can be challenging because these malware types often hide their activities. However, some common symptoms may include unexpected changes in system behavior, such as slow performance, frequent crashes, or unfamiliar programs running in the background. You might also notice unusual network activity, changes in browser settings, or the appearance of unwanted toolbars or extensions. If you suspect that your system is infected, it's crucial to take action promptly to minimize potential damage.
How to Remove Trojan.Patcher.A
- Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
- Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. This can help identify and remove Trojan.Patcher.A and any other malware that may be present.
- Uninstall any suspicious programs or applications that you do not recognize or that were installed around the time the malware was detected.
- Reset your web browsers (Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings changes made by the Trojan.
- Reboot your computer and perform another full scan with your anti-malware tool to ensure that the threat has been fully removed.
Conclusion
Removing Trojan.Patcher.A from your system requires careful steps to ensure that all components of the malware are eliminated. It's also a reminder of the importance of maintaining good cybersecurity practices, such as regularly updating software, using strong passwords, and being cautious when downloading or installing new applications. By taking proactive measures and staying informed, you can significantly reduce the risk of future malware infections and protect your digital security.
Aliases
9 security vendors flagged this file as malicious.
| Antivirus Vendor | Detection |
|---|---|
| Ikarus | not-a-virus.Patch.Diskeeper |
| Microsoft | HackTool:Win32/AppPatcher |
| Antiy-AVL | Trojan/win32.agent.gen |
| AntiVir | SPR/Tool.AppPatcher |
| Comodo | ApplicUnwnt.Win32.HackTool.AppPatcher.asc |
| eSafe | Win32.SPRTool.AppPat |
| F-Prot | W32/AppPatcher |
| K7AntiVirus | Hacktool |
| McAfee | Artemis!725E6EB820CC |
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. | PATCH.EXE | 725e6eb820cceeba72b623af35f1c06f | 91 |
Analysis Report
General information
| Family Name: | Trojan.Patcher.A |
|---|---|
| Packers: | UPX |
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
1e02fa3f934fbcdfeab86eb880f7d5ea
SHA1:
8ecaac6a037918b5d8722eab7e44c4af8ed6cac3
SHA256:
F009874189618C227FC066532BFC37BCFA6F07CA8C0BB7C6353DD156DC952666
File Size:
199.17 KB, 199168 bytes
|
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MD5:
4c80fc82ea590e935a9034f13b488c01
SHA1:
3c4ff39cf910cd4de5905af2e4c8367b7b33b8c7
SHA256:
813ACF2CBD3DCB7E8BF344E35A9556173077212E2C04AE6881C2C6E3490FFDC7
File Size:
559.10 KB, 559104 bytes
|
|
MD5:
09d5f2519ffa4cddee59a4027530811b
SHA1:
be9b12c67bbba1f279d5206d3b89917b7cd64af4
SHA256:
5E19EA36665DE7157E86237806011BCD39902152C3BC89942BA7A3259418BC20
File Size:
208.63 KB, 208626 bytes
|
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MD5:
9db1a94b872ace78b39680ac68248f1b
SHA1:
82c8a58b6f31dac2c515fea5002673066690b64f
SHA256:
3EDAD1F2E16D29B5242BF3068BF99A93CBA691161E5530ECAAC8FE5C68D06634
File Size:
75.78 KB, 75776 bytes
|
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MD5:
666e68025f8461de89c8ff534c299a83
SHA1:
05f9de3bad8dc85a16935018bc08c836ad81ce5e
SHA256:
CCE8007E0EF20CB89925E1B4BEC186C3A32598DD3952E22A53FCC11A9B52D9EF
File Size:
199.68 KB, 199680 bytes
|
Show More
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MD5:
5fadf7f209ca6b8d5f48f44632499fa5
SHA1:
06eb1147c360da16038913d6a41d0632833a0418
SHA256:
959F10F5F75D71204AE37F8C88A654AA5A5A3EF28D93138951428E6186A864C5
File Size:
43.52 KB, 43520 bytes
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MD5:
f13d6eef074deba9bbcae43bfe3deae9
SHA1:
42cb64633c5af4a25b31b69159e03ff0a4af7f5c
SHA256:
57BBDFE3D9042FC2E449E989ADF52E7AF7595CA43A9817FE4AB7BB11A17221AA
File Size:
62.98 KB, 62976 bytes
|
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MD5:
7be418e29528db21fb103318a623defe
SHA1:
f9b839d7beaa9ce4c11793b96c3368424489a164
SHA256:
92A981EAF943F22AB731D099AA123CD1545D83E61161E7882A61809CA8D5E825
File Size:
461.42 KB, 461415 bytes
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MD5:
3c5fcd6cee9170a077df23ddf5e76fa7
SHA1:
b795240a5c15271961d0fee05a3adaecac3d5aaf
SHA256:
C3CD2304571EE282590B3BED7A331C8A972667CD3A816BCE60F9CC42D3944AC7
File Size:
80.90 KB, 80896 bytes
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MD5:
4d3d87ac4e0bd8c30d3dcd462dba6e64
SHA1:
959e8f41b14a7d335563b289052d51c47bf00cba
SHA256:
150AF1E131CFA9011F97A99D5C4FDE243A8B87586F4C5EE9686CF2D9269D075D
File Size:
359.42 KB, 359424 bytes
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MD5:
a331bb8b1c5572470ce73bded66ae342
SHA1:
9d49b3cb5e1f5613bada132aa3096661c011d978
SHA256:
C98D7C9A3F4A8C2497B5CE15D4A35B027C76C3A48C4CB6C301A3CD9AA4E5389B
File Size:
3.09 MB, 3091968 bytes
|
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MD5:
10846882f75bdce4084f5e46e869f2b0
SHA1:
bf5afdc3ff4350de96e51e4f352d11fb18a90b15
SHA256:
5197EEFA8314744006A1F1A1E668F42C1C1FFE641327B4C34CF590857FD4BE6C
File Size:
25.60 KB, 25600 bytes
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MD5:
9c42779077795b3cdde0032c3ba4f3a6
SHA1:
8a2ecdb2408d0189127d7230c39f289f9219b193
SHA256:
EBDDB92493A82015E231CE1A63C36CCF86B3C6E5E158AA3C82E2F577BE04134A
File Size:
150.53 KB, 150528 bytes
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MD5:
4e7f9209c6f0ec7ce1e384a7b95a74b8
SHA1:
edbbc8fe62274d893431aedbc7c71862b99d1c34
SHA256:
E99AA116BB577790D972A3D0B4E5B8348F3282D68F2E2847B6F2F985EA269E1D
File Size:
202.24 KB, 202240 bytes
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MD5:
e020816dbd1438aa4b7a627dca7dbdea
SHA1:
fecf810ab1d27888eb8341d20aa748d54f815afe
SHA256:
9B49E9B674EC5BF367B7AE3A7EF06C831174C7F4EA47C7C388B9E4004F5F1AD4
File Size:
155.65 KB, 155648 bytes
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MD5:
247c95ff290ca9a0cdcf118a69663d98
SHA1:
b55b79d990a17301040cb54c1c5f2570af7f4305
SHA256:
7A76BAA59614ACAF9F83F1A82C92987369FA3A4A732B5683BF7ACC1EB278CC4E
File Size:
219.65 KB, 219648 bytes
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MD5:
b3d5c7cd03e190dbce2cfdaac545be15
SHA1:
c4399b8404230359c098e9d77932978c0db05033
SHA256:
DE8922FADD6A4594A01D6D09348E41699BE388FF6AC40870DBF25F110E77E536
File Size:
4.88 MB, 4880384 bytes
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MD5:
9a7cb1da0c85652245492587035cbc48
SHA1:
0dd5376b318eab572e358ee8e0a3d446d017d2b8
SHA256:
4C585A3B2A3915F3E4FF8939BD503B05866AE282084DE91EFC78D4852F06C855
File Size:
3.01 MB, 3010187 bytes
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MD5:
999c49c0dfb6b5491e9809f7477c31d9
SHA1:
b20e363d8bf25c759e4ce6c2a756b93978ea04c1
SHA256:
9F94DC10D9D9132D719ECE4640BB62465C1F65685FA44A55CFFE81C79B75194E
File Size:
41.98 KB, 41984 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 has been packed
- File has exports table
- File has TLS information
- File is 32-bit executable
- File is either console or GUI application
Show More
- 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)
- 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 | KelSat Presents |
| File Description | Ghostbusters V2.0.1.0 Plus 5 Trainer |
| File Version |
|
| Internal Name |
|
| Legal Copyright | KelSat Presents |
| Original Filename | TJprojMain.exe |
| Product Name |
|
| Product Version |
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File Traits
- .adata
- .aspack
- .UPX
- 2+ executable sections
- ASPack v2.12
- HighEntropy
- No Version Info
- packed
- PECompact v2.20
- UPX!
Show More
- VirtualQueryEx
- WriteProcessMemory
- 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: | 27 |
|---|---|
| Potentially Malicious Blocks: | 19 |
| Whitelisted Blocks: | 7 |
| Unknown Blocks: | 1 |
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.- Banker.YA
- Downloader.Delf.F
- Injector.KAL
- Injector.KL
- Injector.N
Show More
- Patcher.A
- Remcos.W
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 |
|---|---|
| \device\namedpipe | Generic Read,Write Attributes |
| \device\namedpipe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\7za.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\a.7z | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\keygen.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\lanbo.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\lanbo.exe | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nslbcbe.tmp | Synchronize,Write Attributes |
| c:\users\user\appdata\local\temp\nslbcbe.tmp\execdos.dll | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\nslbcbe.tmp\execdos.dll | Synchronize,Write Attributes |
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| c:\windows\syswow64\brewers.dll | 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\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | ꧲뫼華ǜ | RegNtPreCreateKey |
| HKLM\system\controlset001\control\session manager::pendingfilerenameoperations | *1\??\C:\Windows\SystemTemp\MicrosoftEdgeUpdate.exe.old5af52 *1\??\C:\Windows\SystemTemp\CopilotUpdate.exe.old5af62 *1\??\C:\P | 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 |
|---|---|
| Other Suspicious |
|
| Anti Debug |
|
| User Data Access |
|
| Process Manipulation Evasion |
|
| Process Shell Execute |
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| Syscall Use |
Show More
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| Process Terminate |
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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:\Users\Kjttyhlk\AppData\Local\Temp\7za.exe" x "C:\Users\Kjttyhlk\AppData\Local\Temp\a.7z" -p5FD2ByXlbB -o"C:\Users\Kjttyhlk\AppData\Local\Temp\" -aoa
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C:\Users\Kjttyhlk\AppData\Local\Temp\keygen.exe
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C:\Users\Kjttyhlk\AppData\Local\Temp\lanbo.exe
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