Win32:GranCrab-A [Trj]

Written by Robert Bailey

What is Win32:GranCrab-A [Trj] infection?

In this article you will discover about the meaning of Win32:GranCrab-A [Trj] as well as its unfavorable impact on your computer system. Such ransomware are a type of malware that is elaborated by on the internet frauds to demand paying the ransom money by a target.

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Most of the situations, Win32:GranCrab-A [Trj] infection will certainly instruct its victims to initiate funds transfer for the purpose of neutralizing the amendments that the Trojan infection has actually introduced to the sufferer’s gadget.

Win32:GranCrab-A [Trj] Summary

These alterations can be as follows:

  • 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.
  • Exhibits possible ransomware file modification behavior;
  • 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.
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the sufferer’s hard drive — so the target can no longer use the information;
  • Preventing normal accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32:GranCrab-A [Trj]

The most typical networks where Win32:GranCrab-A [Trj] Ransomware are injected are:

  • By means of phishing emails;
  • As a repercussion of user ending up on a resource that organizes a destructive software program;

As soon as the Trojan is effectively infused, it will either cipher the data on the sufferer’s computer or avoid the gadget from working in a correct way – while also placing a ransom money note that states the need for the sufferers to effect the settlement for the objective of decrypting the records or recovering the file system back to the preliminary condition. In the majority of circumstances, the ransom note will certainly turn up when the customer reboots the COMPUTER after the system has currently been harmed.

Win32:GranCrab-A [Trj] circulation channels.

In numerous corners of the world, Win32:GranCrab-A [Trj] expands by jumps and also bounds. Nevertheless, the ransom money notes and methods of extorting the ransom quantity might differ depending upon certain local (regional) settings. The ransom notes as well as tricks of obtaining the ransom money amount may vary depending on particular local (local) setups.

Ransomware injection

For example:

    Faulty notifies regarding unlicensed software.

    In certain locations, the Trojans often wrongfully report having identified some unlicensed applications made it possible for on the target’s tool. The alert then requires the customer to pay the ransom money.

    Faulty statements concerning prohibited web content.

    In nations where software application piracy is much less popular, this technique is not as reliable for the cyber fraudulences. Conversely, the Win32:GranCrab-A [Trj] popup alert may incorrectly claim to be originating from a law enforcement organization and also will certainly report having situated child porn or other unlawful information on the device.

    Win32:GranCrab-A [Trj] popup alert might incorrectly claim to be acquiring from a legislation enforcement institution as well as will certainly report having situated child porn or other unlawful information on the tool. The alert will likewise contain a need for the individual to pay the ransom.

Technical details

File Info:

crc32: CDDE24F5
md5: 8d604e3c567aab3c8cfa2d2c424c09c4
name: 8D604E3C567AAB3C8CFA2D2C424C09C4.mlw
sha1: ea67934ea56ace6617b22f036201704ff5c49e71
sha256: 43b57d2b16c44041916f3b0562712d5dca4f8a42bc00f00a023b4a0788d18276
sha512: 11c384a2fb1d7a9c840eb2cd82c5215d6f83609d629856fb336f40a5be07b50f2b52e0bd3f7a1b633b9205e1e951347082ffdbfcb8ac0e47d6d44132e927c68b
ssdeep: 1536:Ym933tZGLkaPDEBbxrqWJPDFXOsWjcdiLgItyTlip:b3IkiYbJrEgItyTlip
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32:GranCrab-A [Trj] also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.Siggen7.55586
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.GandCrab
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.7945
Sangfor Win.Ransomware.Gandcrab-6667060-0
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Genasom.ali1000102
K7GW Trojan ( 00526c7b1 )
K7AntiVirus Trojan ( 00526c7b1 )
Cyren W32/Gandcrab.O.gen!Eldorado
Symantec Downloader
ESET-NOD32 a variant of Win32/Filecoder.GandCrab.B
APEX Malicious
Avast Win32:GranCrab-A [Trj]
ClamAV Win.Ransomware.Gandcrab-6667060-0
Kaspersky Trojan-Ransom.Win32.GandCrypt.cis
BitDefender Generic.Ransom.GandCrab4.BC23B282
NANO-Antivirus Trojan.Win32.GandCrypt.fewyfe
MicroWorld-eScan Generic.Ransom.GandCrab4.BC23B282
Tencent Malware.Win32.Gencirc.114d2639
Ad-Aware Generic.Ransom.GandCrab4.BC23B282
Sophos Mal/Generic-S + Troj/GandCrab-Q
Comodo Malware@#y6qpqb1q7i63
BitDefenderTheta Gen:NN.ZexaF.34628.fuW@amusQQoi
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Generic.nh
Emsisoft Generic.Ransom.GandCrab4.BC23B282 (B)
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1123427
eGambit Unsafe.AI_Score_99%
Microsoft Ransom:Win32/Gandcrab
AegisLab Trojan.Win32.GandCrypt.4!c
GData Generic.Ransom.GandCrab4.BC23B282
AhnLab-V3 Malware/Win32.Generic.C2643745
McAfee Ran-GandCrabv4!8D604E3C567A
MAX malware (ai score=95)
VBA32 BScope.TrojanRansom.GandCrypt
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_GANDCRAB.THGODAH
Rising Ransom.Genasom!8.293 (CLOUD)
Yandex Trojan.GandCrypt!zXoRwgGuv7s
Ikarus Trojan-Ransom.GandCrab
Fortinet W32/Filecoder_GandCrab.B!tr
AVG Win32:GranCrab-A [Trj]
Qihoo-360 Win32/Ransom.GandCrab.HxQBEpsA

How to remove Win32:GranCrab-A [Trj] ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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 Win32:GranCrab-A [Trj] 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 Win32:GranCrab-A [Trj] you can always ask me in the comments for getting help.

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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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