Threat Database Trojans Trojan.Chepdu.A

Trojan.Chepdu.A

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 22,248
Threat Level: 80 % (High)
Infected Computers: 78
First Seen: August 16, 2021
Last Seen: April 24, 2026
OS(es) Affected: Windows

The detection of Trojan.Chepdu.A on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to infiltrate and compromise your computer, often without your knowledge or consent. It is essential to understand the nature of this threat and take prompt action to remove it and prevent future infections.

What Is Trojan.Chepdu.A?

Trojan.Chepdu.A is a type of malware that falls under the broader category of Trojans. Trojans are malicious programs that disguise themselves as legitimate software, allowing them to bypass security measures and gain unauthorized access to a computer system. Once inside, they can cause a variety of problems, including data theft, system crashes, and the installation of additional malware. The name "Trojan.Chepdu.A" suggests that it is a specific variant of Trojan malware, but the exact characteristics and behaviors can vary widely.

How Trojan.Chepdu.A Operates

Trojan.Chepdu.A, like other Trojans, operates by exploiting vulnerabilities in software or tricking users into installing it. This can happen through various means, such as opening malicious email attachments, clicking on infected links, or downloading compromised software from the internet. Once installed, the malware can communicate with its creators, allowing them to control the infected computer remotely. This can lead to a range of malicious activities, including stealing sensitive information, using the computer as part of a botnet for distributed denial-of-service (DDoS) attacks, or installing additional malware.

Symptoms of Infection

The symptoms of a Trojan.Chepdu.A infection can be subtle and may not always be immediately apparent. Common signs include slow system performance, frequent crashes, and unusual network activity. You might also notice unfamiliar programs or icons on your computer, changes to your browser settings, or unexpected pop-ups and advertisements. In some cases, the malware may operate silently, making it difficult to detect without the use of antivirus software.

How to Remove Trojan.Chepdu.A

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for internet access. This will make it easier to download and install removal tools.
  2. Download and run a full scan with a reputable anti-malware tool, such as SpyHunter. Ensure the tool is updated with the latest definitions to increase the chances of detecting and removing the malware.
  3. Uninstall any suspicious programs that you do not recognize or that were installed around the time the malware was detected. Be cautious and only remove programs you are sure are not essential to your system's operation.
  4. Reset your web browsers (Chrome, Firefox, Edge) to their default settings. This can help remove any malicious extensions or settings changes made by the malware.
  5. Reboot your computer and run another full scan with your anti-malware tool to ensure that the malware has been completely removed. Repeat this process if the malware is still detected after the first removal attempt.

Conclusion

Removing Trojan.Chepdu.A requires careful and thorough action to ensure that all components of the malware are eliminated from your system. It is crucial to stay vigilant and take preventive measures to avoid future infections, such as keeping your operating system and software up to date, using strong antivirus protection, and being cautious when clicking on links or downloading software from the internet. By understanding the nature of Trojan.Chepdu.A and following the steps outlined for its removal, you can help protect your computer and personal data from this and other malware threats.

Analysis Report

General information

Family Name: Trojan.Chepdu.A
Signature status: No Signature

Known Samples

MD5: d99dadb7aa1da5daeb18bf83101ed6d9
SHA1: 8f0f2d6a595e0d5743db208a7d6eb4d3c9230e7e
SHA256: AD35E15AF10F3BE6E18B2A35B77ED0E67E2870323B58C52DB076B374F5FE1CC9
File Size: 73.28 KB, 73276 bytes
MD5: 908d9f26a44e17b02663cad661c5d586
SHA1: ccd9818b63a8b1b195245d4ac108f57d4172f197
SHA256: 48BF78A7442F3170A9E7494B28C821479268BD7AD5536A94F800802766BABD5C
File Size: 126.98 KB, 126976 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 is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
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  • 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
Comments Morrin Database Engine - Sub Module for FWA
Company Name Morrin Corporation
File Description Morrin Database Engine - Sub Module for FWA
File Version 5, 0, 0, 5
Internal Name MrnDBInfoFWA.dll
Legal Copyright Copyright (C) 2002-2005 Morrin Corporation. All rights reserved.
Original Filename MrnDBInfoFWA.dll
Product Name Morrin Database Engine
Product Version 5, 0, 0, 0

File Traits

  • dll
  • x86

Block Information

Total Blocks: 462
Potentially Malicious Blocks: 4
Whitelisted Blocks: 375
Unknown Blocks: 83

Visual Map

? ? ? ? ? ? 0 0 0 0 0 0 0 ? ? ? ? ? 0 ? ? ? ? ? 0 0 ? ? 0 0 0 ? ? ? 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 ? ? x 0 0 0 0 ? 0 0 0 ? 0 0 0 ? 0 0 x 0 0 0 0 x 0 0 ? ? 0 0 ? ? 0 0 0 0 0 0 ? x 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? ? 0 0 0 ? ? ? ? ? ? ? ? ? ? ? 0 ? 0 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? ? 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 ? 0 ? 0 ? 0 0 0 0 0 ? ? ? ? ? ? ? ? ? ? ? ? 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Files Modified

File Attributes
c:\users\user\appdata\local\temp\fea1d.tmp Generic Write,Read Attributes

Windows API Usage

Category API
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
User Data Access
  • GetUserObjectInformation
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtQueryAttributesFile
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  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWriteFile
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\ccd9818b63a8b1b195245d4ac108f57d4172f197_0000126976.,LiQMAxHB

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