Threat Database Trojans DDoS:Win32/Nitol.A

DDoS:Win32/Nitol.A

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 85
First Seen: December 3, 2012
Last Seen: April 28, 2026
OS(es) Affected: Windows

The detection of DDoS:Win32/Nitol.A on your system indicates a potential security threat that requires immediate attention. This detection name suggests a type of malicious software that could be involved in Distributed Denial-of-Service (DDoS) attacks, which are designed to overwhelm a website or network by flooding it with traffic from multiple sources. Understanding what DDoS:Win32/Nitol.A is and how it operates is crucial for taking the necessary steps to protect your computer and data.

What Is DDoS:Win32/Nitol.A?

DDoS:Win32/Nitol.A refers to a type of malware that is associated with DDoS attacks. The "DDoS" part of the name indicates its capability to conduct such attacks, while "Win32" suggests it is designed to operate on 32-bit Windows systems. The ".A" likely denotes a specific variant or version of the malware. Malware like DDoS:Win32/Nitol.A can be used by attackers to compromise computers and use them as bots in DDoS attacks without the owners' knowledge.

How DDoS:Win32/Nitol.A Operates

Malware such as DDoS:Win32/Nitol.A typically operates by first infecting a computer, often through exploited vulnerabilities, phishing emails, or malicious downloads. Once installed, it can communicate with its command and control servers to receive instructions, which might include launching DDoS attacks against specified targets. The malware can also spread to other computers, creating a network of infected machines (a botnet) that can be controlled remotely to amplify the attack's impact.

Symptoms of Infection

Symptoms of an infection can be subtle and might include unusual network activity, slow system performance, or unexplained increases in internet usage. In some cases, the malware might not exhibit noticeable symptoms at all, making it difficult for users to detect without the aid of security software. Regular system scans and monitoring network activity can help in identifying potential threats early on.

How to Remove DDoS:Win32/Nitol.A

  1. Boot into Safe Mode with Networking: This will help limit the malware's ability to interfere with the removal process. Safe Mode loads only the most essential drivers and services, making it easier to remove malicious software.
  2. Conduct a Full Scan: Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. Ensure the tool is updated with the latest definitions to improve the chances of detecting and removing the malware.
  3. Uninstall Suspicious Programs: Check your installed programs for anything suspicious or unfamiliar and uninstall it. Be cautious and only remove programs you are sure are malicious or unnecessary.
  4. Reset Your Browser: If your web browser (such as Chrome, Firefox, or Edge) has been affected, resetting it to its default settings can help remove any malicious extensions or settings changes made by the malware.
  5. Reboot and Re-scan: After taking the above steps, reboot your computer and run another full scan with your anti-malware tool to ensure that the malware has been completely removed and no other threats are present.

Conclusion

Removing DDoS:Win32/Nitol.A from your system requires careful and methodical steps to ensure the malware is completely eradicated. It's also crucial to take preventive measures to avoid future infections, including keeping your operating system and software up to date, using strong antivirus software, and being cautious when clicking on links or downloading attachments from unknown sources. By understanding the nature of the threat and taking proactive steps, you can protect your computer and contribute to the security of the broader internet community.

Aliases

15 security vendors flagged this file as malicious.

Antivirus Vendor Detection
Kaspersky Trojan.Win32.MicroFake.bg
McAfee Artemis!B6BC38421829
Kaspersky Trojan.Win32.Scar.couf
McAfee Artemis!8B1CA62A7C21
Kaspersky Trojan.Win32.MicroFake.bk
eSafe Win32.TRMicroFake.Ba
McAfee Artemis!4785D37E3598
Panda Trj/Genetic.gen
Antiy-AVL Trojan/Win32.MicroFake
McAfee-GW-Edition Heuristic.BehavesLike.Win32.Suspicious.H
Kaspersky Trojan.Win32.MicroFake.rf
McAfee Artemis!A0EAD738BE12
Ikarus Trojan.Win32.Nitol
AntiVir TR/Agent.bbe
Kaspersky Trojan.Win32.Scar.cyyn

SpyHunter Detects & Remove DDoS:Win32/Nitol.A

File System Details

DDoS:Win32/Nitol.A may create the following file(s):
# File Name MD5 Detections
1. HostServices6.exe b1ebc889d5aebdaa2c687d964ba78d42 18
2. USB3Sw32.dll b6897de2a7ebe57c28d0b527fc85b281 11
3. ScreenShot.exe 51a596330e578d23beb92d2ff24265fa 4
4. ookyou.exe 0e30383773e4b958a0f691c7182fe8f8 1

Analysis Report

General information

Family Name: Trojan.Nitol.AB
Signature status: No Signature

Known Samples

MD5: 60bcb0e1b9ae5a9b50dcff7decd656ae
SHA1: 69c10e2beb55ff3b4ddaeedb40167ac23a87a154
SHA256: A5E39316D1B2E8DBCC12684A1BD8D8B9FB6EDF2F2AB75A5EDDCAF2AB1C609A0A
File Size: 17.41 KB, 17408 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 resources
  • File doesn't have security information
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
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  • 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 Traits

  • No Version Info
  • VirtualQueryEx
  • WriteProcessMemory
  • x86

Block Information

Total Blocks: 47
Potentially Malicious Blocks: 32
Whitelisted Blocks: 8
Unknown Blocks: 7

Visual Map

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

Files Modified

File Attributes
c:\windows\syswow64\winhvqf32.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\windows\syswow64\winhvqf32.exe Generic Write,Read Attributes,Delete,LEFT 262144
c:\windows\syswow64\winhvqf32.exe Generic Write,Read Attributes,LEFT 262144
c:\windows\syswow64\winhvqf32.exe Generic Write,Read Data,Read Attributes,Delete,LEFT 262144
c:\windows\syswow64\winhvqf32.exe Generic Write,Read Data,Read Attributes,LEFT 262144
c:\windows\syswow64\winhvqf32.exe Synchronize,Write Attributes

Registry Modifications

Key::Value Data API Name
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 �m8� �v������$kF(�1�1HO@V�c�zk�q{b��P��/�����X����j��m�����$�a�წ���=�SB1_T�Vw�k a�R���%�������AE��D��&��$���L RegNtPreCreateKey

Windows API Usage

Category API
Anti Debug
  • OutputDebugString
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess

Shell Command Execution

C:\WINDOWS\system32\cmd.exe /c del c:\users\user\DOWNLO~1\69C10E~1 > nul
C:\WINDOWS\system32\cmd.exe /c del C:\WINDOWS\SysWOW64\WINHVQ~1.EXE > nul