Trojan:Win32/Galock.A

Written by Robert Bailey

What is Trojan:Win32/Galock.A infection?

In this short article you will certainly locate concerning the meaning of Trojan:Win32/Galock.A as well as its adverse effect on your computer. Such ransomware are a type of malware that is specified by on-line scams to require paying the ransom by a victim.

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In the majority of the situations, Trojan:Win32/Galock.A virus will certainly instruct its victims to start funds move for the objective of reducing the effects of the amendments that the Trojan infection has actually presented to the victim’s tool.

Trojan:Win32/Galock.A Summary

These alterations can be as follows:

  • 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.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • 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.
  • The executable is compressed using UPX;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Deletes its original binary from disk;
  • 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
  • Creates a copy of itself;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Ciphering the documents found on the target’s hard disk drive — so the victim can no more utilize the data;
  • Preventing routine 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.
Similar behavior
Related domains
z.whorecord.xyz Trojan-Ransom.Win32.Blocker.axas
a.tomx.xyz Trojan-Ransom.Win32.Blocker.axas

Trojan:Win32/Galock.A

The most normal channels where Trojan:Win32/Galock.A are injected are:

  • By ways of phishing e-mails;
  • As an effect of user ending up on a source that hosts a harmful software program;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s PC or avoid the gadget from working in a proper way – while likewise positioning a ransom note that discusses the need for the targets to effect the payment for the purpose of decrypting the files or bring back the file system back to the first problem. In the majority of circumstances, the ransom money note will turn up when the customer restarts the PC after the system has actually currently been harmed.

Trojan:Win32/Galock.A circulation networks.

In different edges of the world, Trojan:Win32/Galock.A expands by leaps and also bounds. However, the ransom notes and also tricks of obtaining the ransom money amount may vary depending upon particular regional (local) settings. The ransom money notes as well as tricks of extorting the ransom money amount might vary depending on certain local (regional) settings.

Ransomware injection

For instance:

    Faulty signals regarding unlicensed software.

    In certain areas, the Trojans often wrongfully report having detected some unlicensed applications made it possible for on the target’s device. The sharp after that demands the user to pay the ransom money.

    Faulty statements regarding unlawful web content.

    In countries where software application piracy is much less prominent, this approach is not as effective for the cyber frauds. Conversely, the Trojan:Win32/Galock.A popup alert might incorrectly claim to be deriving from a law enforcement organization and also will report having located child porn or various other prohibited information on the tool.

    Trojan:Win32/Galock.A popup alert might incorrectly claim to be acquiring from a regulation enforcement institution and also will certainly report having situated youngster pornography or various other illegal data on the gadget. The alert will in a similar way have a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: E8E3FFCC
md5: 4b0be767a3c3adb528220756579b1086
name: 4B0BE767A3C3ADB528220756579B1086.mlw
sha1: 13779a49c86dd1fce459c84edaca76d75cb2b2fe
sha256: 54b1d7a5dfc144d2dff5ba0fcba0b3202120d5dcf7afd0005a993abcf527e1fd
sha512: c96a82878c6ecead60deba70d8c47f8184d3c699be45d1b2597cb4494a1f4c4bb97c4b0363696dede5cd3b0979a6f24622843567204c0732b013421309687d42
ssdeep: 768:5+r/NikngXDSDfnThnjR0O7T56x5kk4Xdysagz0WxBajPhU:QQkX91L7VOd4tUWxBajPe
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

rb65EHHXHxuWDxWyEC4r: i6aPukmHpX
InternalName: Alpha Jostle Wheat
ProductName: Turkey Jan Paw Limps
k1QSgDds6h3WSRtWDsCA: tLDX3baixI
MJQlgrlxdt4: qWLrwOFHAGwM8H
ProductVersion: 7 5 4786
Translation: 0x0409 0x04b0

Trojan:Win32/Galock.A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Spyware ( 0040f2f71 )
Elastic malicious (high confidence)
DrWeb Trojan.Siggen5.2892
Cynet Malicious (score: 100)
ALYac Gen:Variant.Symmi.20078
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7GW Spyware ( 0040f2f71 )
Cybereason malicious.7a3c3a
Symantec Trojan.Gen.MBT
ESET-NOD32 Win32/Agent.UNX
APEX Malicious
Avast Win32:Dropper-gen [Drp]
ClamAV Win.Trojan.Galock-1
Kaspersky Trojan-Ransom.Win32.Blocker.axas
BitDefender Gen:Variant.Symmi.20078
NANO-Antivirus Trojan.Win32.Blocker.cpjwyx
MicroWorld-eScan Gen:Variant.Symmi.20078
Tencent Win32.Trojan.Blocker.Pbzf
Ad-Aware Gen:Variant.Symmi.20078
Sophos Mal/Generic-R + Mal/ZboCheMan-N
Comodo Malware@#5eabk2avuzxv
BitDefenderTheta Gen:NN.ZexaF.34688.cmKfaym7xZB
VIPRE Trojan.Win32.Zbocheman.fb (v)
TrendMicro TROJ_SPNR.11CL13
McAfee-GW-Edition PWS-Zbot-FAQO!EA3D97F81959
FireEye Generic.mg.4b0be767a3c3adb5
Emsisoft Gen:Variant.Symmi.20078 (B)
SentinelOne Static AI – Suspicious PE
Webroot Trojanspy:Win32/Fitmu.A
Avira TR/Crypt.ULPM.Gen
Microsoft Trojan:Win32/Galock.A
AegisLab Trojan.Win32.Blocker.j!c
GData Gen:Variant.Symmi.20078
McAfee Artemis!4B0BE767A3C3
MAX malware (ai score=100)
VBA32 Trojan.SB.01742
Malwarebytes Trojan.Agent.RVGen5
Panda Trj/OCJ.D
TrendMicro-HouseCall TROJ_SPNR.11CL13
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.GenAsa!/1l3+7DVp1w
Ikarus Trojan-Ransom.Blocker
Fortinet W32/Yakes.B!tr
AVG Win32:Dropper-gen [Drp]
Paloalto generic.ml

How to remove Trojan:Win32/Galock.A 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 Trojan:Win32/Galock.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 Trojan:Win32/Galock.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: 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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