Threat Database Trojans Trojan.Patcher.A

Trojan.Patcher.A

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

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.

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

  1. Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
  2. 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.
  3. Uninstall any suspicious programs or applications that you do not recognize or that were installed around the time the malware was detected.
  4. Reset your web browsers (Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings changes made by the Trojan.
  5. 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

Trojan.Patcher.A may create the following file(s):
# File Name MD5 Detections
1. PATCH.EXE 725e6eb820cceeba72b623af35f1c06f 91

Analysis Report

General information

Family Name: Trojan.Patcher.A
Packers: UPX
Signature status: No Signature

Known Samples

MD5: 1e02fa3f934fbcdfeab86eb880f7d5ea
SHA1: 8ecaac6a037918b5d8722eab7e44c4af8ed6cac3
SHA256: F009874189618C227FC066532BFC37BCFA6F07CA8C0BB7C6353DD156DC952666
File Size: 199.17 KB, 199168 bytes
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
MD5: 9db1a94b872ace78b39680ac68248f1b
SHA1: 82c8a58b6f31dac2c515fea5002673066690b64f
SHA256: 3EDAD1F2E16D29B5242BF3068BF99A93CBA691161E5530ECAAC8FE5C68D06634
File Size: 75.78 KB, 75776 bytes
MD5: 666e68025f8461de89c8ff534c299a83
SHA1: 05f9de3bad8dc85a16935018bc08c836ad81ce5e
SHA256: CCE8007E0EF20CB89925E1B4BEC186C3A32598DD3952E22A53FCC11A9B52D9EF
File Size: 199.68 KB, 199680 bytes
Show More
MD5: 5fadf7f209ca6b8d5f48f44632499fa5
SHA1: 06eb1147c360da16038913d6a41d0632833a0418
SHA256: 959F10F5F75D71204AE37F8C88A654AA5A5A3EF28D93138951428E6186A864C5
File Size: 43.52 KB, 43520 bytes
MD5: f13d6eef074deba9bbcae43bfe3deae9
SHA1: 42cb64633c5af4a25b31b69159e03ff0a4af7f5c
SHA256: 57BBDFE3D9042FC2E449E989ADF52E7AF7595CA43A9817FE4AB7BB11A17221AA
File Size: 62.98 KB, 62976 bytes
MD5: 7be418e29528db21fb103318a623defe
SHA1: f9b839d7beaa9ce4c11793b96c3368424489a164
SHA256: 92A981EAF943F22AB731D099AA123CD1545D83E61161E7882A61809CA8D5E825
File Size: 461.42 KB, 461415 bytes
MD5: 3c5fcd6cee9170a077df23ddf5e76fa7
SHA1: b795240a5c15271961d0fee05a3adaecac3d5aaf
SHA256: C3CD2304571EE282590B3BED7A331C8A972667CD3A816BCE60F9CC42D3944AC7
File Size: 80.90 KB, 80896 bytes
MD5: 4d3d87ac4e0bd8c30d3dcd462dba6e64
SHA1: 959e8f41b14a7d335563b289052d51c47bf00cba
SHA256: 150AF1E131CFA9011F97A99D5C4FDE243A8B87586F4C5EE9686CF2D9269D075D
File Size: 359.42 KB, 359424 bytes
MD5: a331bb8b1c5572470ce73bded66ae342
SHA1: 9d49b3cb5e1f5613bada132aa3096661c011d978
SHA256: C98D7C9A3F4A8C2497B5CE15D4A35B027C76C3A48C4CB6C301A3CD9AA4E5389B
File Size: 3.09 MB, 3091968 bytes
MD5: 10846882f75bdce4084f5e46e869f2b0
SHA1: bf5afdc3ff4350de96e51e4f352d11fb18a90b15
SHA256: 5197EEFA8314744006A1F1A1E668F42C1C1FFE641327B4C34CF590857FD4BE6C
File Size: 25.60 KB, 25600 bytes
MD5: 9c42779077795b3cdde0032c3ba4f3a6
SHA1: 8a2ecdb2408d0189127d7230c39f289f9219b193
SHA256: EBDDB92493A82015E231CE1A63C36CCF86B3C6E5E158AA3C82E2F577BE04134A
File Size: 150.53 KB, 150528 bytes
MD5: 4e7f9209c6f0ec7ce1e384a7b95a74b8
SHA1: edbbc8fe62274d893431aedbc7c71862b99d1c34
SHA256: E99AA116BB577790D972A3D0B4E5B8348F3282D68F2E2847B6F2F985EA269E1D
File Size: 202.24 KB, 202240 bytes
MD5: e020816dbd1438aa4b7a627dca7dbdea
SHA1: fecf810ab1d27888eb8341d20aa748d54f815afe
SHA256: 9B49E9B674EC5BF367B7AE3A7EF06C831174C7F4EA47C7C388B9E4004F5F1AD4
File Size: 155.65 KB, 155648 bytes
MD5: 247c95ff290ca9a0cdcf118a69663d98
SHA1: b55b79d990a17301040cb54c1c5f2570af7f4305
SHA256: 7A76BAA59614ACAF9F83F1A82C92987369FA3A4A732B5683BF7ACC1EB278CC4E
File Size: 219.65 KB, 219648 bytes
MD5: b3d5c7cd03e190dbce2cfdaac545be15
SHA1: c4399b8404230359c098e9d77932978c0db05033
SHA256: DE8922FADD6A4594A01D6D09348E41699BE388FF6AC40870DBF25F110E77E536
File Size: 4.88 MB, 4880384 bytes
MD5: 9a7cb1da0c85652245492587035cbc48
SHA1: 0dd5376b318eab572e358ee8e0a3d446d017d2b8
SHA256: 4C585A3B2A3915F3E4FF8939BD503B05866AE282084DE91EFC78D4852F06C855
File Size: 3.01 MB, 3010187 bytes
MD5: 999c49c0dfb6b5491e9809f7477c31d9
SHA1: b20e363d8bf25c759e4ce6c2a756b93978ea04c1
SHA256: 9F94DC10D9D9132D719ECE4640BB62465C1F65685FA44A55CFFE81C79B75194E
File Size: 41.98 KB, 41984 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 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

Windows PE Version Information

Name Value
Company Name KelSat Presents
File Description Ghostbusters V2.0.1.0 Plus 5 Trainer
File Version
  • 1.00
  • 1.0.1.32
  • 1, 0, 0, 0
Internal Name
  • Ghostbusters V2.0.1.0 Plus 5 Trainer
  • TJprojMain
Legal Copyright KelSat Presents
Original Filename TJprojMain.exe
Product Name
  • Ghostbusters V2.0.1.0 Plus 5 Trainer
  • Project1
Product Version
  • 1.00
  • 1.0.0.0
  • 1, 0, 0, 0

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

Total Blocks: 27
Potentially Malicious Blocks: 19
Whitelisted Blocks: 7
Unknown Blocks: 1

Visual Map

0 x x x x x x x x x x x x 0 x x x x x x x 0 0 ? 0 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Banker.YA
  • Downloader.Delf.F
  • Injector.KAL
  • Injector.KL
  • Injector.N
Show More
  • Patcher.A
  • Remcos.W

Files Modified

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

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

Category API
Other Suspicious
  • SetWindowsHookEx
Anti Debug
  • IsDebuggerPresent
User Data Access
  • GetUserObjectInformation
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateMutant
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  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • UNKNOWN
Process Terminate
  • TerminateProcess

Shell Command Execution

"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
C:\Users\Kjttyhlk\AppData\Local\Temp\keygen.exe
C:\Users\Kjttyhlk\AppData\Local\Temp\lanbo.exe