Backdoor:Win32/Vawtrak.A

Written by Robert Bailey

What is Backdoor:Win32/Vawtrak.A infection?

In this short article you will locate concerning the definition of Backdoor:Win32/Vawtrak.A and also its adverse influence on your computer. Such ransomware are a kind of malware that is clarified by on-line scams to require paying the ransom by a target.

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In the majority of the instances, Backdoor:Win32/Vawtrak.A virus will certainly advise its victims to initiate funds transfer for the purpose of counteracting the amendments that the Trojan infection has introduced to the sufferer’s device.

Backdoor:Win32/Vawtrak.A Summary

These alterations 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.
  • Compression (or decompression);
  • Injection with CreateRemoteThread in a remote process;
  • PlugX;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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.
  • A process attempted to delay the analysis task.;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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
  • Exhibits behavior characteristics of Vawtrak / Neverquest malware.;
  • Attempts to modify browser security settings;
  • Attempts to disable browser security warnings;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the sufferer’s hard disk drive — so the victim can no longer utilize the data;
  • Preventing routine access to the sufferer’s workstation;
Similar behavior
Related domains
z.whorecord.xyz Trojan.Ransom.GenericKD.43367153
a.tomx.xyz Trojan.Ransom.GenericKD.43367153

Backdoor:Win32/Vawtrak.A

One of the most regular channels whereby Backdoor:Win32/Vawtrak.A Trojans are injected 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 consequence of user winding up on a source that hosts a malicious software program;

As soon as the Trojan is efficiently infused, it will either cipher the information on the target’s computer or protect against the gadget from operating in a correct way – while also putting a ransom note that states the requirement for the sufferers to effect the repayment for the objective of decrypting the files or restoring the data system back to the initial problem. In a lot of circumstances, the ransom money note will turn up when the client reboots the COMPUTER after the system has currently been damaged.

Backdoor:Win32/Vawtrak.A circulation networks.

In numerous edges of the globe, Backdoor:Win32/Vawtrak.A expands by jumps and bounds. Nevertheless, the ransom money notes as well as techniques of obtaining the ransom amount might vary depending upon specific regional (local) settings. The ransom money notes and methods of obtaining the ransom money amount may differ depending on specific local (local) settings.

Ransomware injection

For instance:

    Faulty alerts concerning unlicensed software.

    In particular locations, the Trojans often wrongfully report having detected some unlicensed applications allowed on the target’s device. The alert then demands the user to pay the ransom.

    Faulty statements regarding unlawful material.

    In nations where software program piracy is much less popular, this technique is not as reliable for the cyber fraudulences. Conversely, the Backdoor:Win32/Vawtrak.A popup alert might incorrectly assert to be deriving from a law enforcement institution and also will report having located youngster pornography or other prohibited data on the device.

    Backdoor:Win32/Vawtrak.A popup alert may wrongly assert to be deriving from a regulation enforcement establishment and will report having situated youngster porn or other illegal data on the gadget. The alert will similarly have a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: C6AC1C51
md5: 11ebb20cc8e6119d1072063e0533c529
name: 11EBB20CC8E6119D1072063E0533C529.mlw
sha1: bef1a1c06798463870a4b920cc3f9b8c2b98305d
sha256: be14ddc5f1f787bf9dba72eee9f233b287aabde5276e23c4ce9087910a96ee4e
sha512: acacad5f35749ddbf756788fa313fa4e506de98bc925da16c3efb52122dcecd488d7e0a3dbc7f452a9dc6378b0ee19e73e71f48613edc1544b63e342b95227da
ssdeep: 6144:uXFSNuqsmwYJh+yVmpHOTtCRXBddE9KQ5PcyU60aa31LFTFLklLveN4prbp:3IqHJh+ywYTezVQ5PSVaU1BFLklLGO
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: colorcpl
FileVersion: 6.1.7600.16385 (win7_rtm.090713-1255)
CompanyName: Microsoft Corporation
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 6.1.7600.16385
FileDescription: Microsoft Color Control Panel
OriginalFilename: colorcpl.exe
Translation: 0x0409 0x04b0

Backdoor:Win32/Vawtrak.A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Password-Stealer ( 0055e3dc1 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Stealer.13574
Cynet Malicious (score: 100)
CAT-QuickHeal Backdoor.Vawtrack.F4
McAfee Artemis!11EBB20CC8E6
Cylance Unsafe
Zillya Trojan.Papras.Win32.1890
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba TrojanPSW:Win32/Papras.0ffcbac0
K7GW Password-Stealer ( 0055e3dc1 )
Cybereason malicious.cc8e61
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/PSW.Papras.DT
APEX Malicious
Avast Win32:Crypt-RWF [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.GenericKD.43367153
NANO-Antivirus Trojan.Win32.Stealer.dnqfjg
MicroWorld-eScan Trojan.Ransom.GenericKD.43367153
Tencent Win32.Trojan.Generic.Dyqt
Ad-Aware Trojan.Ransom.GenericKD.43367153
Sophos Mal/Generic-R + Mal/Vawtrak-H
Comodo Malware@#rynvi2ujp011
BitDefenderTheta Gen:NN.ZexaF.34692.zq0@aWkYWzci
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_DYER.BME
McAfee-GW-Edition BehavesLike.Win32.Generic.gc
FireEye Generic.mg.11ebb20cc8e6119d
Emsisoft Trojan.Ransom.GenericKD.43367153 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Generic.bjgqy
Webroot W32.Infostealer.Zeus
Avira HEUR/AGEN.1123584
eGambit Generic.Malware
Antiy-AVL Trojan/Generic.ASMalwS.E30383
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Backdoor:Win32/Vawtrak.A
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.GenericKD.43367153
AhnLab-V3 Trojan/Win32.Gen
Acronis suspicious
VBA32 BScope.TrojanRansom.Reveton
MAX malware (ai score=100)
Panda Generic Suspicious
TrendMicro-HouseCall TROJ_DYER.BME
Rising Backdoor.Vawtrak!8.11D (CLOUD)
Yandex Trojan.Agent!QhGlVpIB+30
Ikarus Trojan.Agent
Fortinet W32/Bedep.EP!tr
AVG Win32:Crypt-RWF [Trj]
Paloalto generic.ml

How to remove Backdoor:Win32/Vawtrak.A virus?

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/Vawtrak.A 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Backdoor:Win32/Vawtrak.A 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: http://gridinsoft.com/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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