Trojan:Win32/Alureon.GC

Written by Robert Bailey

What is Trojan:Win32/Alureon.GC infection?

In this post you will discover about the meaning of Trojan:Win32/Alureon.GC and its unfavorable impact on your computer system. Such ransomware are a form of malware that is specified by online frauds to require paying the ransom money by a target.

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In the majority of the cases, Trojan:Win32/Alureon.GC infection will instruct its victims to launch funds move for the purpose of reducing the effects of the amendments that the Trojan infection has presented to the target’s gadget.

Trojan:Win32/Alureon.GC Summary

These adjustments can be as complies with:

  • 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.
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • 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.

  • Unconventionial language used in binary resources: Russian;
  • 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
  • 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.
  • 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the sufferer’s hard disk — so the sufferer can no more utilize the data;
  • Preventing normal 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.

Trojan:Win32/Alureon.GC

The most regular channels through which Trojan:Win32/Alureon.GC Ransomware Trojans are infused are:

  • By ways of phishing emails;
  • As an effect of user winding up on a source that holds a harmful software program;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s PC or protect against the device from working in an appropriate fashion – while also putting a ransom money note that points out the requirement for the sufferers to effect the payment for the function of decrypting the papers or bring back the data system back to the initial condition. In most instances, the ransom money note will show up when the customer reboots the COMPUTER after the system has already been harmed.

Trojan:Win32/Alureon.GC circulation networks.

In numerous edges of the globe, Trojan:Win32/Alureon.GC expands by jumps as well as bounds. Nonetheless, the ransom notes and tricks of obtaining the ransom amount may vary depending on particular neighborhood (regional) settings. The ransom notes and tricks of extorting the ransom money quantity might vary depending on particular neighborhood (regional) settings.

Ransomware injection

For instance:

    Faulty informs about unlicensed software application.

    In particular locations, the Trojans often wrongfully report having actually identified some unlicensed applications enabled on the victim’s gadget. The alert after that requires the user to pay the ransom money.

    Faulty declarations regarding prohibited web content.

    In nations where software program piracy is less preferred, this method is not as efficient for the cyber frauds. Conversely, the Trojan:Win32/Alureon.GC popup alert might incorrectly claim to be deriving from a police establishment as well as will report having situated kid porn or other prohibited data on the tool.

    Trojan:Win32/Alureon.GC popup alert may wrongly claim to be deriving from a law enforcement establishment and also will certainly report having situated child porn or other prohibited data on the gadget. The alert will in a similar way contain a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 74704F0D
md5: 187ca9a1ff637742ba622763da0b6551
name: 187CA9A1FF637742BA622763DA0B6551.mlw
sha1: cb2ea59023dc67fc62c753d8694c42930f5045e6
sha256: bbfc0a50953da7e3f3c0c42fd837e84e8dd748da8372757c9f5e6079bc00fcc0
sha512: 881e358ca9731eb7cabc3e524792233ae47909b21089f6b0c09d524b98881d7792d3832fd93fd595a7274660ed35487dc2877bcaa38149ae4523ff39b7eb9fbd
ssdeep: 3072:uoBQf0sX3h52RlFqAkKYh5+KgZp7FHIXEn+TTz:uoM3h52bFTkKwgZeX
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2006-2013
InternalName: maintutil
FileVersion: 2.2.5.4
CompanyName: EnerLine Software Int.
ProductName: Volume Maintenance Utility
ProductVersion: 2.2.5.4
FileDescription: Volume Maintenance Utility
OriginalFilename: ntfsvolmaintutil.exe
Translation: 0x0000 0x04b0

Trojan:Win32/Alureon.GC also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
DrWeb Trojan.Inject1.23233
Cynet Malicious (score: 100)
ALYac Gen:Variant.Midie.74376
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/Blocker.e3fb32f6
K7GW Riskware ( 0040eff71 )
Cybereason malicious.1ff637
Cyren W32/S-68cde041!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.BDYT
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.biqp
BitDefender Gen:Variant.Midie.74376
NANO-Antivirus Trojan.Win32.Blocker.dwnhzx
SUPERAntiSpyware Trojan.Agent/Gen-Graftor
MicroWorld-eScan Gen:Variant.Midie.74376
Tencent Win32.Trojan.Blocker.Dyqu
Ad-Aware Gen:Variant.Midie.74376
Sophos Mal/Generic-R + Mal/EncPk-AKK
Comodo Malware@#1ablv7y3t9rgy
BitDefenderTheta Gen:NN.ZexaF.34692.jq0@ayUteTck
VIPRE Trojan.Win32.Reveton.a (v)
TrendMicro TSPY_ZBOT.PYH
McAfee-GW-Edition BehavesLike.Win32.Emotet.ch
FireEye Generic.mg.187ca9a1ff637742
Emsisoft Gen:Variant.Midie.74376 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Blocker.kzg
Webroot W32.Rogue.Gen
Avira TR/Crypt.ZPACK.Gen8
eGambit Generic.Malware
Antiy-AVL Trojan/Generic.ASMalwS.267D04
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Alureon.GC
AegisLab Trojan.Win32.Blocker.4!c
GData Gen:Variant.Midie.74376
TACHYON Trojan/W32.Blocker.147456.K
AhnLab-V3 Trojan/Win32.Foreign.R116597
Acronis suspicious
McAfee PWS-Zbot-FBFN!187CA9A1FF63
MAX malware (ai score=100)
VBA32 BScope.TrojanPSW.Panda
Panda Trj/Dtcontx.E
TrendMicro-HouseCall TSPY_ZBOT.PYH
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.GenAsa!zhKEAuGKBv0
Ikarus Trojan.Win32.Alureon
MaxSecure Trojan.Malware.5899462.susgen
Fortinet W32/Zbot.AAO!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Trojan:Win32/Alureon.GC 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/Alureon.GC 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/Alureon.GC 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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