Threat Database Trojans Trojan.Agent.Gen.ATZ

Trojan.Agent.Gen.ATZ

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Popularity Rank: 14,288
Threat Level: 80 % (High)
First Seen: February 16, 2026
Last Seen: October 18, 2026
OS(es) Affected: Windows

Trojan.Agent.Gen.ATZ is a generic detection name used for a Windows-based Trojan that is designed to infiltrate systems quietly and carry out malicious instructions without the user's knowledge. With a danger level rating of 8 out of 10, this threat is considered serious, as it is capable of giving attackers significant control over an infected machine. Because it is identified as a "generic" Trojan, it may appear in slightly different forms, but all variants share the same core goal: compromising the security and privacy of the affected computer.

What Trojan.Agent.Gen.ATZ Does

Once active, Trojan.Agent.Gen.ATZ runs silently in the background of the operating system, avoiding obvious signs of infection while it performs its malicious functions. It does not carry a valid digital signature, which means the file has not been verified by any legitimate software publisher — a common trait of threats that are built to disguise themselves as ordinary files. This Trojan is capable of interacting directly with low-level Windows system functions, including operations related to process information, memory management, and file writing. These capabilities can allow it to manipulate running processes, read or alter data in memory, and write files to the system, actions that are often used by Trojans to maintain their presence, gather information, or prepare the system for further compromise. In many cases, threats in this category are also built to allow remote attackers to gain broader control over the infected computer, potentially enabling additional malicious activity such as installing other malware, stealing data, or monitoring user behavior.

How It Usually Gets Onto Computers

Trojan.Agent.Gen.ATZ typically spreads by exploiting system vulnerabilities and security flaws on unpatched or poorly protected computers. It is also commonly distributed through software downloads from compromised or malicious websites, as well as through email attachments sent from untrusted or spoofed sources. These attachments may be disguised as common file types, including executable files, video files, or even image files, tricking users into opening them. Because the Trojan is engineered to install itself stealthily, victims often have no indication that anything unusual has happened until damage has already occurred.

Risks for the User

The presence of Trojan.Agent.Gen.ATZ on a system poses considerable risk. Attackers may use the foothold it provides to gain extensive control over the infected machine, potentially allowing them to view, modify, or steal sensitive files, monitor activity, or deploy additional malicious software. Given its ability to interact with core system processes and memory, this Trojan can be difficult to detect using casual observation alone, increasing the chance that an infection goes unnoticed for an extended period.

Signs of Infection

Because Trojan.Agent.Gen.ATZ is designed to operate stealthily, visible symptoms may be minimal or absent. However, users should watch for warning signs typical of this type of threat, such as unexplained slowdowns, unusual background processes, unexpected network activity, programs behaving erratically, or security tools being disabled without explanation.

How to Stay Protected

To reduce the risk of infection, keep the Windows operating system and all installed software fully updated to close known security gaps. Avoid downloading programs from unofficial or suspicious websites, and never open email attachments from unknown or unverified senders. Maintaining regular backups, using a reputable and up-to-date antimalware solution, and practicing cautious browsing habits are essential steps toward keeping systems safe from threats like Trojan.Agent.Gen.ATZ.

Analysis Report

General information

Family Name: Trojan.Agent.Gen.ATZ
Signature status: No Signature

Known Samples

MD5: d7007e3b58f43326c4b814ceaefb779b
SHA1: 1502de08521a05ce810854db06eed283b8d246fa
SHA256: 9C0185EC3AFB02B1CC87C0BBF5AC13F587B7C79907535E1533CE5C639A8D63C2
File Size: 258.56 KB, 258560 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have exports table
  • File doesn't have resources
  • File doesn't have security 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)
Show 1 more
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • dll
  • fptable
  • x64

Block Information

Total Blocks: 874
Potentially Malicious Blocks: 4
Whitelisted Blocks: 866
Unknown Blocks: 4

Visual Map

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

Similar Families

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtDeviceIoControlFile
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  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtFsControlFile
  • 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!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySystemInformation
  • 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!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN