Threat Database Trojans Trojan.Agent.DFDO

Trojan.Agent.DFDO

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 17,116
Threat Level: 80 % (High)
Infected Computers: 12
First Seen: October 2, 2025
Last Seen: July 31, 2026
OS(es) Affected: Windows

The detection of Trojan.Agent.DFDO on your system indicates a potential security threat that requires immediate attention. This type of threat is generally associated with malicious software designed to compromise the security and integrity of your computer. It is essential to understand the nature of this threat and take appropriate steps to remove it and protect your system from further harm.

What Is Trojan.Agent.DFDO?

Trojan.Agent.DFDO is a type of malware that falls under the broader category of Trojan horses. Trojan horses are malicious programs that disguise themselves as legitimate software, allowing them to infiltrate computer systems without being detected. Once inside, they can perform a variety of harmful actions, including data theft, system compromise, and the installation of additional malware. The specific characteristics and behaviors of Trojan.Agent.DFDO can vary, but its primary goal is to undermine the security of the infected system.

How Trojan.Agent.DFDO Operates

Malware like Trojan.Agent.DFDO typically operates by exploiting vulnerabilities in software or tricking users into installing it. Once installed, it can communicate with its command and control servers to receive instructions, which might include stealing sensitive information, downloading additional malware, or using the infected computer as part of a botnet for malicious activities. The exact operation can depend on the intentions of the malware authors and the capabilities built into the Trojan.

Symptoms of Infection

Identifying a Trojan infection can be challenging due to its stealthy nature. However, there are several symptoms that might indicate the presence of malware like Trojan.Agent.DFDO. These include unexpected changes to system settings, unusual network activity, slowed system performance, and the appearance of unwanted programs or toolbars. If you suspect that your system is infected, it is crucial to act promptly to minimize potential damage.

How to Remove Trojan.Agent.DFDO

  1. Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all traces of the malware.
  3. Uninstall any suspicious programs 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 malware.
  5. Reboot your computer and perform another full scan to ensure that all malware components have been removed and that your system is clean.

Conclusion

Removing Trojan.Agent.DFDO from your system requires careful and thorough action. By following the steps outlined above and maintaining vigilance against future threats, you can help protect your computer and personal data from harm. It is also important to practice good cybersecurity habits, such as regularly updating your software, using strong antivirus protection, and being cautious when clicking on links or downloading attachments from unknown sources. Remember, prevention and prompt action are key to minimizing the impact of malware infections and keeping your digital environment safe.

Analysis Report

General information

Family Name: Trojan.Agent.DFDO
Signature status: No Signature

Known Samples

MD5: cff8b65a7c74b171ad3653966bee6e10
SHA1: 4e3e33b2875a1d9923af99c34209f3454af0e750
SHA256: BE3486640D8AEEF938A2FB38F8BBC8CA2C16EF19A5C816B81A70139EDD0F1DB7
File Size: 95.23 KB, 95232 bytes
MD5: 2748dddca30939e423881861d257d956
SHA1: e9f0e203a0078d61605d64acaed695ac27239601
SHA256: 2BAD83F0D8238F6F1EF217D5C9384A007D954BDDFC71B9869571B8997F0EA697
File Size: 95.23 KB, 95232 bytes
MD5: 49d19251f954fc89cbc96381bdcf45cd
SHA1: 42ba89038725cb31506e27bf77a174de5d9d6488
SHA256: 84797CCF8F8FCD1B0AAA5478BAE5A656693AD6D8E9DD9C1A61CB650220E092E3
File Size: 95.23 KB, 95232 bytes
MD5: 6f26ca1be142cffbe10c4dd6e09d03ac
SHA1: c0c287cd1f6df24fd71243357c395e8d3504add1
SHA256: 7007487AFDB7B14C6E1BCB750190495820FBD32E81E96366F075B770D6813BB7
File Size: 95.23 KB, 95232 bytes
MD5: b519a62210c8881f4d55f7f1537127be
SHA1: bd53de9e788e70398eae312591b05bf2a608c3a9
SHA256: 6002A37FE780F5A6E3786BA2BD33BBA8B1AB21EC897D81D415CD4E96E5C5DDF4
File Size: 95.23 KB, 95232 bytes
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MD5: 0e0c0f914b7683dfb87b05a8f7ac88aa
SHA1: 4db886a680498c0ea9d205ed0bd64645b43e15a6
SHA256: C8CE91E34DAE500F7289DD9F15CD7417E36970528D3D8C4F08AA8237FAC50FBD
File Size: 95.23 KB, 95232 bytes
MD5: 53db840923764b8ce03032eae476b9c3
SHA1: a54e67b5445e7152614d9174db59bcb917ddc6b6
SHA256: 0D3FFE10567DB2D2EE0F4AD7EC9CEA990160E99A70740F1BCD6EF38BC8895E49
File Size: 95.23 KB, 95232 bytes
MD5: 2f292fffecedd96ea7473d6dd59fa7dc
SHA1: af981871ec694b7373553ea4eb1e13f07ed9a40c
SHA256: 561D28411C45FE355CCD1571891EF9B20D43F4138966CC8AA63C54A9D44FA7C7
File Size: 95.23 KB, 95232 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 security information
  • File has TLS information
  • File is 64-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
  • File is not packed
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  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

Windows PE Version Information

Name Value
Company Name Steam Tools
File Description Steam Account Switcher
File Version 1.0.0.0
Internal Name SteamAccountSwitcher
Legal Copyright Copyright (C) 2026
Original Filename SteamAccountSwitcher.exe
Product Name Steam Account Switcher
Product Version 1.0.0.0

File Traits

  • x64

Block Information

Total Blocks: 785
Potentially Malicious Blocks: 9
Whitelisted Blocks: 659
Unknown Blocks: 117

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

Similar Families

  • CobaltStrike.GDF
  • TelegramBot.D

Files Modified

File Attributes
c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.1.regtrans-ms Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\local\microsoft\windows\usrclass.dat{dba6b5ef-640a-11ed-9bcb-f677369d361c}.txr.2.regtrans-ms Generic Read,Write Data,Write Attributes,Write extended,Append data

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAddAtomEx
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcAcceptConnectPort
  • ntdll.dll!NtAlpcConnectPortEx
  • ntdll.dll!NtAlpcCreatePort
  • ntdll.dll!NtAlpcOpenSenderProcess
  • ntdll.dll!NtAlpcQueryInformation
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
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  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtDeleteValueKey
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFindAtom
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtNotifyChangeKey
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenMutant
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSetTimer2
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtUnsubscribeWnfStateChange
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForMultipleObjects
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • UNKNOWN