Win32:Adware-CWC [Adw]

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Win32:Adware-CWC [Adw] infection?

In this short article you will locate regarding the meaning of Win32:Adware-CWC [Adw] as well as its unfavorable effect on your computer. Such ransomware are a type of malware that is elaborated by on the internet fraudulences to require paying the ransom money by a victim.

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In the majority of the cases, Win32:Adware-CWC [Adw] ransomware will certainly instruct its sufferers to launch funds transfer for the function of reducing the effects of the amendments that the Trojan infection has actually presented to the victim’s gadget.

Win32:Adware-CWC [Adw] Summary

These alterations 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.
  • 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.
  • 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.
  • Uses Windows utilities for basic functionality;
  • Attempts to restart the guest VM;
  • Deletes its original binary from disk;
  • Attempts to stop active services;
  • Network activity contains more than one unique useragent.;
  • 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
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to modify UAC prompt behavior;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the victim’s hard disk — so the sufferer can no longer make use of 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.

Win32:Adware-CWC [Adw]

One of the most typical networks through which Win32:Adware-CWC [Adw] Trojans are infused are:

  • By ways of phishing e-mails;
  • As a consequence of customer ending up on a resource that organizes a harmful software program;

As quickly as the Trojan is efficiently injected, it will either cipher the information on the victim’s computer or avoid the device from operating in a correct fashion – while additionally putting a ransom money note that states the demand for the targets to effect the settlement for the purpose of decrypting the papers or recovering the data system back to the preliminary problem. In many instances, the ransom money note will turn up when the client restarts the COMPUTER after the system has actually already been harmed.

Win32:Adware-CWC [Adw] circulation networks.

In different edges of the world, Win32:Adware-CWC [Adw] grows by jumps as well as bounds. Nevertheless, the ransom notes and also techniques of extorting the ransom money amount may differ relying on particular regional (local) setups. The ransom money notes and also tricks of obtaining the ransom quantity may vary depending on certain neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty signals about unlicensed software application.

    In certain areas, the Trojans often wrongfully report having identified some unlicensed applications allowed on the sufferer’s tool. The sharp then demands the individual to pay the ransom money.

    Faulty declarations about illegal web content.

    In countries where software application piracy is less prominent, this approach is not as efficient for the cyber fraudulences. Additionally, the Win32:Adware-CWC [Adw] popup alert may falsely claim to be originating from a law enforcement institution and will certainly report having located kid pornography or various other prohibited data on the tool.

    Win32:Adware-CWC [Adw] popup alert may falsely declare to be deriving from a law enforcement institution and also will report having situated child porn or other prohibited information on the gadget. The alert will likewise have a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 4179975F
md5: 086b68a0cfe3b62165d7813d860484e1
name: 086B68A0CFE3B62165D7813D860484E1.mlw
sha1: 8dab7012c3a6c38856f3775e03dd110fded9ba59
sha256: 702e7a830dbb290ce8402fbd2e7e6e50393af80376c904aea2b23b6714e6a3c5
sha512: 555a04b47a3753e1633177074818826fa974ef0eecb2ed16f7311c7d595690ff42bae951901dd37daaf769c229310b406916af05600a1cfe523886c04b78207c
ssdeep: 24576:SW0KJaXHw8o/h9SiMs5LC/08yeY13EkK/cRgOnmq9g66B36rKX6L:SW0KWw7JvMsVS0dej3cOU7m6il4
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32:Adware-CWC [Adw] also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
DrWebTrojan.FakeAV.16420
CynetMalicious (score: 100)
CylanceUnsafe
SangforTrojan.Win32.Dapato.8
Cybereasonmalicious.2c3a6c
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Adware.WindowsExpertConsole.AI
APEXMalicious
AvastWin32:Adware-CWC [Adw]
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.Dapato.ctcted
TencentWin32.Trojan.Blocker.Fih
ComodoApplication.Win32.AdWare.WindowsExpertConsole.AI@57h0ai
BitDefenderThetaGen:NN.ZexaCO.34678.aDWaa4Nr8upi
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Generic.tc
FireEyeGeneric.mg.086b68a0cfe3b621
SentinelOneStatic AI – Suspicious PE
WebrootTrojan.Dropper.Gen
AviraTR/Crypt.XPACK.Gen7
eGambitUnsafe.AI_Score_99%
MicrosoftRogue:Win32/FakePAV
AhnLab-V3Trojan/Win32.FakeAV.C257219
McAfeeFakeAlert-FTE!086B68A0CFE3
VBA32BScope.TrojanRansom.Blocker
PandaTrj/CI.A
RisingDropper.Dapato!8.2A2 (TFE:5:wwbj1CFYDaC)
IkarusTrojan.Win32.FakeAV
FortinetW32/FakeAV.AC!tr
AVGWin32:Adware-CWC [Adw]
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Generic.HxMBEpsA

How to remove Win32:Adware-CWC [Adw] 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 GridinSoft3.

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:Adware-CWC [Adw] 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:Adware-CWC [Adw] you can always ask me in the comments for getting help.

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References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  3. More information about GridinSoft products: https://gridinsoft.com/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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