Threat Database Trojans Trojan.Agent.OFSA

Trojan.Agent.OFSA

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 15,059
Threat Level: 80 % (High)
Infected Computers: 6
First Seen: May 30, 2025
Last Seen: June 4, 2026
OS(es) Affected: Windows

The detection of Trojan.Agent.OFSA 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, putting your personal data and sensitive information at risk. It is essential to understand the nature of this threat and take prompt action to remove it and prevent future infections.

What Is Trojan.Agent.OFSA?

Trojan.Agent.OFSA is a type of Trojan horse malware that can infiltrate your system without your knowledge or consent. Trojans are malicious programs that disguise themselves as legitimate software, allowing them to evade detection and gain unauthorized access to your computer. The Trojan.Agent.OFSA detection suggests that your system has been compromised by this type of malware, which can lead to various security issues and potential data breaches.

How Trojan.Agent.OFSA Operates

Once Trojan.Agent.OFSA infects your system, it can operate in various ways, depending on its intended purpose. It may attempt to steal sensitive information, such as login credentials, credit card numbers, or personal data. It can also create backdoors, allowing remote access to your computer, or download and install additional malware. Furthermore, it may modify system settings, disable security software, or disrupt system performance, making it challenging to detect and remove.

Symptoms of Infection

Identifying the symptoms of a Trojan.Agent.OFSA infection can be challenging, as it often disguises itself as legitimate software. However, you may notice unusual system behavior, such as slow performance, frequent crashes, or unfamiliar programs running in the background. You may also receive unexpected pop-ups, experience difficulties with internet connectivity, or find unfamiliar icons on your desktop. If you suspect that your system has been infected, it is crucial to take immediate action to remove the malware.

How to Remove Trojan.Agent.OFSA

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for a more effective removal process.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all instances of the malware.
  3. Uninstall any suspicious programs or software that may be related to the Trojan.Agent.OFSA infection.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
  5. Reboot your computer and perform another full scan to ensure that the malware has been completely removed.

Conclusion

Removing Trojan.Agent.OFSA from your system requires a thorough and multi-step approach. By following the steps outlined above, you can help ensure the complete removal of the malware and prevent future infections. It is essential to remain vigilant and take proactive measures to protect your system and personal data from potential security threats. Regularly updating your operating system, using reputable security software, and practicing safe browsing habits can help prevent similar infections in the future.

Analysis Report

General information

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

Known Samples

MD5: 1dfcd6d0690c4eb10a99b19eb0fd05e9
SHA1: dd58e6af2871c70a4532fc7d7bd8a56f7f47966e
SHA256: 47C72580795661E45C4EA0DCC31954CC63467F149E013FB77A6816AD67AC2750
File Size: 57.34 KB, 57344 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • 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
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
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  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • No Version Info
  • WriteProcessMemory
  • x64

Block Information

Total Blocks: 156
Potentially Malicious Blocks: 8
Whitelisted Blocks: 133
Unknown Blocks: 15

Visual Map

0 0 0 0 ? ? ? 0 ? 0 ? ? ? ? ? ? 0 0 x x 0 0 ? x 0 0 0 0 0 0 0 0 ? 0 0 ? 0 0 0 0 x x x 0 0 x ? 0 x ? 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 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcConnectPort
  • ntdll.dll!NtAlpcConnectPortEx
  • ntdll.dll!NtAlpcCreateResourceReserve
  • ntdll.dll!NtAlpcCreateSecurityContext
  • ntdll.dll!NtAlpcQueryInformation
  • ntdll.dll!NtAlpcQueryInformationMessage
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtAlpcSetInformation
  • ntdll.dll!NtApphelpCacheControl
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  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateIoCompletion
  • ntdll.dll!NtCreateKey
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateTimer2
  • ntdll.dll!NtCreateWaitCompletionPacket
  • ntdll.dll!NtCreateWorkerFactory
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtGetCompleteWnfStateSubscription
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtNotifyChangeKey
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtTraceEvent
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • UNKNOWN
Network Winsock2
  • WSAStartup
Network Wininet
  • InternetOpen
  • InternetOpenUrl

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