Ransom.GandCrab.UPX

Written by Robert Bailey

What is Ransom.GandCrab.UPX infection?

In this post you will discover regarding the interpretation of Ransom.GandCrab.UPX and also its adverse influence on your computer. Such ransomware are a kind of malware that is clarified by online frauds to demand paying the ransom by a sufferer.

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Most of the cases, Ransom.GandCrab.UPX ransomware will certainly instruct its sufferers to start funds transfer for the objective of neutralizing the modifications that the Trojan infection has presented to the target’s device.

Ransom.GandCrab.UPX Summary

These adjustments 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.
  • Performs some HTTP requests;
  • 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;
  • 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.
  • 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.
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Ciphering the records located on the sufferer’s hard disk drive — so the target can no more use the information;
  • Preventing routine 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.
Similar behavior
Related domains
edgedl.me.gvt1.com Trojan.Ransom.GandCrab

Ransom.GandCrab.UPX

One of the most regular networks where Ransom.GandCrab.UPX are injected are:

  • By ways of phishing emails;
  • As a consequence of individual ending up on a source that organizes a harmful software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the target’s computer or avoid the gadget from operating in an appropriate fashion – while likewise placing a ransom note that points out the need for the targets to effect the settlement for the objective of decrypting the files or restoring the documents system back to the first condition. In many circumstances, the ransom note will certainly turn up when the customer reboots the COMPUTER after the system has actually currently been damaged.

Ransom.GandCrab.UPX circulation channels.

In various edges of the globe, Ransom.GandCrab.UPX grows by jumps and also bounds. However, the ransom money notes and methods of obtaining the ransom amount may vary depending upon certain regional (local) setups. The ransom money notes as well as tricks of obtaining the ransom money quantity might differ depending on specific local (local) settings.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software program.

    In certain locations, the Trojans usually wrongfully report having identified some unlicensed applications allowed on the victim’s tool. The alert then demands the individual to pay the ransom money.

    Faulty statements concerning unlawful material.

    In nations where software application piracy is much less popular, this method is not as efficient for the cyber fraudulences. Conversely, the Ransom.GandCrab.UPX popup alert might falsely assert to be originating from a police organization and also will report having located kid porn or other illegal data on the device.

    Ransom.GandCrab.UPX popup alert may incorrectly claim to be deriving from a law enforcement institution and will report having situated kid pornography or other illegal information on the tool. The alert will likewise include a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 559A19AE
md5: ad5a2dde47b4ab1ed1cc90fb0b039869
name: AD5A2DDE47B4AB1ED1CC90FB0B039869.mlw
sha1: 938d9271941e04ebb31310313be02bec67f64f66
sha256: 6d291c12fdb7ded66cb67088bb2fc84a28b2f36f22a599cb9a03b41b02fe0540
sha512: 7196cc58662e6d14a7ecc40357c18f657a96eb7395550deedbfbf5cc842e0dbcc5a1436f3f272259714625d268b3aa16efc708a992c104d767eb5b1aca6e1715
ssdeep: 1536:iF/sJ7gntZc9AI/bz0C0158a1dt/oiRDdzbP8n+exeKzec:EsJ70c9AQz0158avZRRzbP2+eIlc
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Ransom.GandCrab.UPX also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0053d33d1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.24384
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.GandCrab
Malwarebytes Ransom.GandCrab.UPX
Zillya Trojan.GandCrypt.Win32.1302
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/Genasom.ali1000102
K7GW Trojan ( 0053d33d1 )
Cybereason malicious.e47b4a
Symantec Ransom.GandCrab!gm
ESET-NOD32 Win32/Filecoder.GandCrab.D
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Gandcrab-6667060-0
BitDefender Trojan.Ransom.GandCrab.W
NANO-Antivirus Trojan.Win32.GandCrypt.flcedb
ViRobot Trojan.Win32.Agent.142336.AE[UPX]
MicroWorld-eScan Trojan.Ransom.GandCrab.W
Tencent Win32.Trojan.Raas.Auto
Ad-Aware Trojan.Ransom.GandCrab.W
Sophos Mal/Generic-R + Troj/Patched-BY
Comodo Malware@#3qv1zze07kaxx
BitDefenderTheta Gen:NN.ZexaF.34684.emHfaiYCJJli
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Dropper.kc
FireEye Generic.mg.ad5a2dde47b4ab1e
Emsisoft Trojan.Ransom.GandCrab.W (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan-Ransom.GandCrypt.b
Avira TR/Crypt.ULPM.Gen
eGambit Unsafe.AI_Score_92%
Kingsoft Win32.Troj.Undef.(kcloud)
GData Trojan.Ransom.GandCrab.W
AhnLab-V3 Malware/Win32.Generic.C2879730
McAfee RDN/Ransom.el
MAX malware (ai score=100)
VBA32 BScope.TrojanRansom.Cryptor
Panda Trj/CI.A
Rising Trojan.Filecoder!1.B42B (CLOUD)
Yandex Trojan.GenAsa!bGn5tHN1PIU
Ikarus Trojan-Ransom.GandCrab
Fortinet W32/GandCrab.D!tr.ransom
AVG Win32:Malware-gen

How to remove Ransom.GandCrab.UPX 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 Ransom.GandCrab.UPX 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.GandCrab.UPX 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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