Ransom:Win32/WannaCrypt

Written by Robert Bailey

What is Ransom:Win32/WannaCrypt infection?

In this article you will certainly discover concerning the definition of Ransom:Win32/WannaCrypt and also its negative impact on your computer. Such ransomware are a kind of malware that is specified by on the internet fraudulences to demand paying the ransom by a victim.

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In the majority of the situations, Ransom:Win32/WannaCrypt ransomware will advise its targets to launch funds move for the function of reducing the effects of the changes that the Trojan infection has actually presented to the victim’s tool.

Ransom:Win32/WannaCrypt 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.
  • Detected script timer window indicative of sleep style evasion;
  • 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.

  • A process created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • A scripting utility was executed;
  • Uses Windows utilities for basic functionality;
  • 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 possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers found on the victim’s hard disk — so the victim can no more utilize the data;
  • Preventing normal access 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.
Similar behavior
Related domains
z.whorecord.xyzW32.RansomwareTBE.Trojan
a.tomx.xyzW32.RansomwareTBE.Trojan

Ransom:Win32/WannaCrypt

One of the most regular networks through which Ransom:Win32/WannaCrypt are infused are:

  • By ways of phishing emails;
  • As an effect of customer winding up on a resource that organizes a destructive software;

As quickly as the Trojan is successfully infused, it will either cipher the information on the victim’s computer or protect against the device from working in an appropriate fashion – while also putting a ransom money note that mentions the demand for the targets to impact the settlement for the objective of decrypting the files or restoring the data system back to the preliminary problem. In the majority of instances, the ransom note will certainly show up when the customer restarts the PC after the system has currently been damaged.

Ransom:Win32/WannaCrypt distribution networks.

In numerous corners of the globe, Ransom:Win32/WannaCrypt grows by leaps and also bounds. Nevertheless, the ransom notes as well as techniques of obtaining the ransom money quantity might vary relying on particular regional (regional) settings. The ransom notes as well as tricks of obtaining the ransom amount may vary depending on particular neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software program.

    In specific areas, the Trojans usually wrongfully report having discovered some unlicensed applications allowed on the target’s gadget. The alert after that demands the user to pay the ransom money.

    Faulty statements concerning illegal web content.

    In countries where software piracy is much less popular, this technique is not as reliable for the cyber frauds. Additionally, the Ransom:Win32/WannaCrypt popup alert might incorrectly assert to be originating from a police organization as well as will certainly report having situated youngster porn or other prohibited data on the device.

    Ransom:Win32/WannaCrypt popup alert may wrongly assert to be obtaining from a legislation enforcement institution and also will report having situated child pornography or other prohibited data on the device. The alert will similarly have a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 4022FCAA
md5: 84c82835a5d21bbcf75a61706d8ab549
name: start.exe
sha1: 5ff465afaabcbf0150d1a3ab2c2e74f3a4426467
sha256: ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa
sha512: 90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244
ssdeep: 98304:QqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2g3x:QqPe1Cxcxk3ZAEUadzR8yc4gB
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: diskpart.exe
FileVersion: 6.1.7601.17514 (win7sp1_rtm.101119-1850)
CompanyName: Microsoft Corporation
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 6.1.7601.17514
FileDescription: DiskPart
OriginalFilename: diskpart.exe
Translation: 0x0409 0x04b0

Ransom:Win32/WannaCrypt also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.RansomwareTBE.Trojan
MicroWorld-eScanTrojan.Ransom.WannaCryptor.A
CAT-QuickHealRansom.WannaCrypt.A4
Qihoo-360Win32/Trojan.Multi.daf
ALYacTrojan.Ransom.WannaCryptor
MalwarebytesRansom.WannaCrypt
VIPRETrojan.Win32.Generic!BT
AegisLabTrojan.Win32.Wanna.toNn
SangforMalware
K7AntiVirusTrojan ( 0050d7171 )
BitDefenderTrojan.Ransom.WannaCryptor.A
K7GWTrojan ( 0050d7171 )
Cybereasonmalicious.5a5d21
TrendMicroRansom_WANA.A
BaiduWin32.Trojan.WannaCry.c
F-ProtW32/WannaCrypt.D
SymantecRansom.Wannacry
ESET-NOD32Win32/Filecoder.WannaCryptor.D
APEXMalicious
Paloaltogeneric.ml
ClamAVWin.Ransomware.WannaCry-6313787-0
KasperskyTrojan-Ransom.Win32.Wanna.zbu
AlibabaRansom:Win32/Wanna.6164712d
NANO-AntivirusTrojan.Win32.Ransom.eoptnj
RisingTrojan.Win32.Rasftuby.a (CLASSIC)
Ad-AwareTrojan.Ransom.WannaCryptor.A
EmsisoftTrojan.Ransom.WannaCryptor.A (B)
ComodoTrojWare.Win32.Ransom.WannaCrypt.B@719b9h
F-SecureTrojan.TR/Ransom.JB
DrWebTrojan.Encoder.11432
ZillyaTrojan.WannaCry.Win32.2
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Generic.wc
FortinetMalicious_Behavior.SB
Trapminemalicious.high.ml.score
FireEyeGeneric.mg.84c82835a5d21bbc
SophosTroj/Ransom-EMG
IkarusTrojan-Ransom.WannaCry
CyrenW32/Trojan.ZTSA-8671
JiangminTrojan.Wanna.eo
WebrootW32.Ransomware.Wcry
AviraTR/Ransom.JB
MAXmalware (ai score=100)
Antiy-AVLTrojan[Ransom]/Win32.Scatter
Endgamemalicious (high confidence)
ArcabitTrojan.Ransom.WannaCryptor.A
ViRobotTrojan.Win32.S.WannaCry.3514368.N
ZoneAlarmTrojan-Ransom.Win32.Wanna.zbu
MicrosoftRansom:Win32/WannaCrypt
AhnLab-V3Trojan/Win32.WannaCryptor.R200571
Acronissuspicious
McAfeeRansom-O.g
TACHYONRansom/W32.WannaCry.Zen
VBA32TrojanRansom.WannaCrypt
CylanceUnsafe
PandaTrj/RansomCrypt.K
ZonerTrojan.Win32.55605
TrendMicro-HouseCallRansom_WANA.A
TencentTrojan-Ransom.Win32.Wcry.a
YandexTrojan.Filecoder!LcLqI1eM+lA
SentinelOneDFI – Malicious PE
eGambitTrojan.Generic
GDataWin32.Trojan-Ransom.WannaCry.A
BitDefenderThetaGen:NN.ZexaF.34122.wt0@aGEmS3di
AVGWin32:WanaCry-A [Trj]
AvastWin32:WanaCry-A [Trj]
CrowdStrikewin/malicious_confidence_100% (W)
MaxSecureTrojan.Ransom.Wanna.d

How to remove Ransom:Win32/WannaCrypt 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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 Ransom:Win32/WannaCrypt 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 Ransom:Win32/WannaCrypt 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/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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