Backdoor:Win32/Xtrat.AC

What is Backdoor:Win32/Xtrat.AC infection?

In this post you will discover regarding the interpretation of Backdoor:Win32/Xtrat.AC as well as its negative influence on your computer system. Such ransomware are a type of malware that is specified by on the internet frauds to demand paying the ransom by a target.

In the majority of the instances, Backdoor:Win32/Xtrat.AC virus will advise its victims to initiate funds move for the purpose of reducing the effects of the amendments that the Trojan infection has introduced to the target’s device.

Backdoor:Win32/Xtrat.AC Summary

These modifications can be as adheres to:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Injection with CreateRemoteThread in a remote process;
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Unconventionial language used in binary resources: Arabic (Iraq);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Code injection with CreateRemoteThread in a remote process;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records found on the victim’s hard drive — so the sufferer can no more make use of the information;
  • Preventing regular accessibility to the victim’s workstation;

Backdoor:Win32/Xtrat.AC

One of the most typical channels through which Backdoor:Win32/Xtrat.AC Ransomware are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of user ending up on a source that holds a malicious software;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s computer or avoid the tool from working in a correct manner – while additionally putting a ransom money note that discusses the requirement for the sufferers to impact the payment for the purpose of decrypting the files or bring back the data system back to the first condition. In most instances, the ransom note will certainly turn up when the customer restarts the PC after the system has actually currently been damaged.

Backdoor:Win32/Xtrat.AC circulation channels.

In various corners of the globe, Backdoor:Win32/Xtrat.AC grows by leaps and bounds. However, the ransom notes and also techniques of extorting the ransom money amount might vary relying on specific neighborhood (local) setups. The ransom money notes as well as tricks of extorting the ransom money amount may differ depending on certain local (regional) setups.

Ransomware injection

For example:

    Faulty alerts regarding unlicensed software program.

    In particular locations, the Trojans commonly wrongfully report having actually discovered some unlicensed applications allowed on the victim’s tool. The alert after that demands the user to pay the ransom.

    Faulty declarations concerning prohibited material.

    In countries where software piracy is much less prominent, this technique is not as effective for the cyber frauds. Alternatively, the Backdoor:Win32/Xtrat.AC popup alert may wrongly declare to be deriving from a police establishment and will certainly report having located youngster porn or other unlawful information on the device.

    Backdoor:Win32/Xtrat.AC popup alert might falsely assert to be acquiring from a legislation enforcement organization and will certainly report having situated youngster pornography or various other unlawful data on the gadget. The alert will similarly contain a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: 597A2E51md5: 4fe282522965681cc68a81866292113ename: 4FE282522965681CC68A81866292113E.mlwsha1: f59e2a12b1ed4bed6241f0e2fca9b77a3f7f6c0csha256: 90718f930046250f6ae41c9069533271c9171c053332ebd78273a2f1bff2cb00sha512: 72f5292b1627b688275f0a927919a89f3774944f92318cce01e07c809525783d25c28a45f9db358fd831ee6a65c7336d4b47a661feddf5fc23c643458ceb3c92ssdeep: 12288:PBEJrXuWhKo5yM5QVuXDgmRKEAekO17D33w6fWoQ42CJ4hKU46gZtmSFFIvllah:6JaaFQGQggyVp18sQ4ShMZASFFQntype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Backdoor:Win32/Xtrat.AC also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Riskware ( 0040eff71 )
DrWeb Trojan.DownLoader9.43701
Cynet Malicious (score: 85)
ALYac Gen:Variant.Ransom.Strictor.14
Cylance Unsafe
Zillya Backdoor.Xtreme.Win32.13408
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (W)
Alibaba Backdoor:Win32/Xtreme.3627df5c
K7GW Riskware ( 0040eff71 )
Cybereason malicious.229656
Cyren W32/Trojan.ITSH-2961
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Remtasu.F
APEX Malicious
TotalDefense Win32/Tnega.RSLUYMB
Avast Win32:Malware-gen
Kaspersky Backdoor.Win32.Xtreme.arxz
BitDefender Gen:Variant.Ransom.Strictor.14
NANO-Antivirus Trojan.Win32.Androm.dnqrwy
ViRobot Backdoor.Win32.S.Xtreme.875008
MicroWorld-eScan Gen:Variant.Ransom.Strictor.14
Tencent Win32.Backdoor.Bp-fakems.Tnkq
Ad-Aware Gen:Variant.Ransom.Strictor.14
Comodo Malware@#hhbb3t21t4sd
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_FORUCON.BME
McAfee-GW-Edition RDN/Generic.bc
FireEye Gen:Variant.Ransom.Strictor.14
Emsisoft Gen:Variant.Ransom.Strictor.14 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Backdoor/Xtreme.bye
Webroot W32.Malware.Gen
Avira HEUR/AGEN.1129031
eGambit Generic.Malware
Microsoft Backdoor:Win32/Xtrat.AC
Arcabit Trojan.Ransom.Strictor.14
GData Gen:Variant.Ransom.Strictor.14
AhnLab-V3 Backdoor/Win32.Xtreme.R130406
McAfee RDN/Generic.bc
MAX malware (ai score=100)
VBA32 TScope.Trojan.Delf
Malwarebytes Malware.Heuristic.1003
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_FORUCON.BME
Rising Backdoor.Xtreme!8.25A (CLOUD)
Yandex Backdoor.Xtreme!9cFFnOu5LI4
Ikarus Backdoor.Win32.Xtreme
Fortinet W32/Injector.COBZ!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Backdoor.Xtreme.HgIASOUA

How to remove Backdoor:Win32/Xtrat.AC ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

Run the setup file.

Run Setup.exe
GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove Backdoor:Win32/Xtrat.AC you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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