Backdoor:Win32/Oztratz.B

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Backdoor:Win32/Oztratz.B infection?

In this article you will discover about the meaning of Backdoor:Win32/Oztratz.B and its adverse influence on your computer system. Such ransomware are a type of malware that is clarified by on-line frauds to require paying the ransom money by a target.

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In the majority of the situations, Backdoor:Win32/Oztratz.B infection will instruct its victims to start funds move for the purpose of counteracting the modifications that the Trojan infection has presented to the target’s tool.

Backdoor:Win32/Oztratz.B Summary

These modifications can be as adheres to:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • 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: Portuguese;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the target’s hard drive — so the victim can no longer utilize the information;
  • Preventing normal accessibility to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Backdoor:Win32/Oztratz.B

The most regular channels through which Backdoor:Win32/Oztratz.B Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of user ending up on a resource that holds a destructive software program;

As quickly as the Trojan is effectively injected, it will either cipher the data on the sufferer’s PC or avoid the tool from operating in a correct way – while also putting a ransom money note that points out the demand for the targets to impact the payment for the function of decrypting the files or recovering the data system back to the initial condition. In most circumstances, the ransom money note will certainly turn up when the client restarts the COMPUTER after the system has currently been damaged.

Backdoor:Win32/Oztratz.B circulation networks.

In different edges of the globe, Backdoor:Win32/Oztratz.B grows by leaps as well as bounds. Nevertheless, the ransom money notes and tricks of extorting the ransom money amount might vary depending on specific local (local) setups. The ransom notes and also methods of obtaining the ransom quantity might vary depending on specific neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software application.

    In certain areas, the Trojans often wrongfully report having actually detected some unlicensed applications made it possible for on the target’s gadget. The alert after that requires the customer to pay the ransom money.

    Faulty statements about prohibited material.

    In nations where software piracy is less popular, this approach is not as reliable for the cyber frauds. Alternatively, the Backdoor:Win32/Oztratz.B popup alert might falsely declare to be originating from a law enforcement organization and will report having located kid pornography or various other unlawful data on the tool.

    Backdoor:Win32/Oztratz.B popup alert may falsely declare to be acquiring from a law enforcement organization and also will report having located kid porn or various other prohibited information on the tool. The alert will in a similar way contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 1A5AB3FF
md5: b4c9b6d3f600a4c3a5a88e7ba24467f3
name: B4C9B6D3F600A4C3A5A88E7BA24467F3.mlw
sha1: 41af4481b2b4b11a1bf56f30be3011038290db85
sha256: 922dd9f95bc46980f54a748a815b4ed7e263ce147910f6d9bd73f0946906bcae
sha512: a16a74a2fa55ec26c75e6a2104d37da570675531eebc0a42ea376a368ce38af44d5839a62a917050f3e9f9b56d4aec10a0cc4836c538c62dd0a200bf8f14504b
ssdeep: 6144:C7RKk/SukT7ovfiE8r+JHsDCam4Ldpmur1:YX/Rm7MdvACaOur1
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

eUp Software: Hx10x01FileDescription
Comments: @x10x01CompanyName
eUp Utilities 2014: @x0ex01ProductVersion
yright xa9 AVG Netherlands B. V. 2011: Lx12x01LegalTrademarks
eUp Utilitiesx2122: Lx16x01ProductName
eUp Undelete: <x0ex01FileVersion
0.1000.340: D
Translation: 0x0407 0x04b0

Backdoor:Win32/Oztratz.B also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Cerber.1
Cylance Unsafe
Zillya Trojan.Vucha.Win32.128
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Backdoor:Win32/Oztratz.fd82c9dd
K7GW Trojan ( 005224381 )
K7AntiVirus Trojan ( 005224381 )
Baidu Win32.Trojan.Kryptik.alb
Symantec Packed.Generic.459
ESET-NOD32 a variant of Win32/GenKryptik.AZX
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Vucha.dc
BitDefender Trojan.Ransom.Cerber.1
NANO-Antivirus Trojan.Win32.Vucha.evisdw
MicroWorld-eScan Trojan.Ransom.Cerber.1
Tencent Win32.Trojan.Generic.Pgmr
Ad-Aware Trojan.Ransom.Cerber.1
Sophos Mal/Generic-R + Mal/EncPk-APV
Comodo MalCrypt.Indus!@1qrzi1
BitDefenderTheta AI:Packer.6FCE5D1220
VIPRE Trojan.Win32.Reveton.a (v)
TrendMicro Ransom_CERBER.SMEJ5
McAfee-GW-Edition BehavesLike.Win32.PUPXCT.cm
FireEye Generic.mg.b4c9b6d3f600a4c3
Emsisoft Trojan.Ransom.Cerber.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Vucha.lt
Avira HEUR/AGEN.1129194
Microsoft Backdoor:Win32/Oztratz.B
Arcabit Trojan.Ransom.Cerber.1
AegisLab Trojan.Win32.Vucha.4!c
GData Trojan.Ransom.Cerber.1
AhnLab-V3 Trojan/Win32.RL_Cerber.R330510
Acronis suspicious
McAfee Ransomware-GCQ!B4C9B6D3F600
MAX malware (ai score=100)
VBA32 BScope.TrojanDownloader.Troxen
Malwarebytes Malware.AI.2900043248
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_CERBER.SMEJ5
Rising Backdoor.Vawtrak!1.AEEC (CLOUD)
Yandex Trojan.GenAsa!GLHkoqzvJHc
Ikarus Trojan-Spy.Win32.Ursnif
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Kryptik.FQRH!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Cerber.HxQB8ekA

How to remove Backdoor:Win32/Oztratz.B 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

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

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 will automatically start scanning your system for Backdoor:Win32/Oztratz.B files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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