Win32/Spy.Zbot.ACZ

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

What is Win32/Spy.Zbot.ACZ infection?

In this article you will find regarding the interpretation of Win32/Spy.Zbot.ACZ and its adverse effect on your computer system. Such ransomware are a form of malware that is specified by on-line frauds to demand paying the ransom by a sufferer.

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Most of the situations, Win32/Spy.Zbot.ACZ infection will certainly instruct its victims to start funds move for the function of reducing the effects of the changes that the Trojan infection has introduced to the target’s device.

Win32/Spy.Zbot.ACZ Summary

These adjustments 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.
  • Injection (inter-process);
  • 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.
  • Mimics the system’s user agent string for its own requests;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • 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.

  • 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;
  • Detects Sandboxie through the presence of a library;
  • Detects the presence of Wine emulator via function name;
  • 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 identify installed analysis tools by a known file location;
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Detects the presence of Wine emulator via registry key;
  • Detects Sandboxie using a known mutex;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Checks for a known DeepFreeze Frozen State Mutex;
  • 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 files found on the sufferer’s hard disk drive — so the sufferer can no longer make use of the information;
  • 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/Spy.Zbot.ACZ

One of the most typical channels whereby Win32/Spy.Zbot.ACZ Ransomware are infused are:

  • By means of phishing emails;
  • As a consequence of user ending up on a source that holds a harmful software application;

As quickly as the Trojan is successfully injected, it will either cipher the information on the victim’s computer or protect against the gadget from functioning in an appropriate fashion – while likewise placing a ransom note that points out the requirement for the victims to effect the settlement for the function of decrypting the records or restoring the data system back to the initial condition. In many instances, the ransom note will certainly show up when the client reboots the PC after the system has already been damaged.

Win32/Spy.Zbot.ACZ circulation networks.

In various edges of the globe, Win32/Spy.Zbot.ACZ grows by leaps as well as bounds. Nevertheless, the ransom notes and also tricks of extorting the ransom amount might differ depending upon certain local (regional) settings. The ransom notes and also techniques of obtaining the ransom money amount may differ depending on specific neighborhood (local) setups.

Ransomware injection

For instance:

    Faulty alerts regarding unlicensed software application.

    In specific areas, the Trojans often wrongfully report having spotted some unlicensed applications enabled on the target’s tool. The alert after that demands the individual to pay the ransom money.

    Faulty declarations regarding illegal content.

    In nations where software piracy is much less prominent, this technique is not as reliable for the cyber fraudulences. Conversely, the Win32/Spy.Zbot.ACZ popup alert might incorrectly assert to be stemming from a police establishment and also will report having located child porn or various other unlawful data on the tool.

    Win32/Spy.Zbot.ACZ popup alert may incorrectly declare to be acquiring from a legislation enforcement institution and will certainly report having located youngster porn or other prohibited data on the device. The alert will likewise consist of a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: A2028F07
md5: 26b95eaae2dafae398a1192fe402c4a1
name: 26B95EAAE2DAFAE398A1192FE402C4A1.mlw
sha1: a805a9538fb269e200b4c21976176c3272eb87d6
sha256: cf8da3113488c9ff26c98ebc4b48898429f1a271806970306184aa4e05a48b26
sha512: 38a505a70951b66c47089393bf79f5f98b2150c5b21b6ef7b8b7a7ac4f8504bc78d09b32888b2421978257a10fbb03b714805b9e3fefae3427f87e42ca26d8cf
ssdeep: 3072:BQtQO0R0GmzcZdZSDp2eh2BaUfmEThZ+mIbmRl:/FcoH8DoBa3kEA
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Spy.Zbot.ACZ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005190011 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.13570
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Exxroute.ZZ6
ALYac Trojan.Ransom.Locky.DN
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba TrojanSpy:Win32/Zuepan.bd8d9d5e
K7GW Trojan ( 0051775f1 )
Cybereason malicious.ae2daf
Cyren W32/S-bdfb9721!Eldorado
Symantec Packed.Generic.493
ESET-NOD32 Win32/Spy.Zbot.ACZ
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.Locky.DN
NANO-Antivirus Trojan.Win32.Locky.esuybz
ViRobot Trojan.Win32.Agent.227328.O
SUPERAntiSpyware Ransom.Cerber/Variant
MicroWorld-eScan Trojan.Ransom.Locky.DN
Tencent Malware.Win32.Gencirc.10bad60a
Ad-Aware Trojan.Ransom.Locky.DN
Sophos ML/PE-A + Mal/Elenoocka-E
Comodo TrojWare.Win32.Crypt.C@7vajd0
F-Secure Heuristic.HEUR/AGEN.1120888
BitDefenderTheta Gen:NN.ZexaF.34628.nqW@aepw8Pi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBER.SMALY0
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
FireEye Generic.mg.26b95eaae2dafae3
Emsisoft Trojan.Ransom.Locky.DN (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Locky.dlu
Avira HEUR/AGEN.1120888
Antiy-AVL Trojan/Win32.TSGeneric
Microsoft Trojan:Win32/Zuepan.A
Arcabit Trojan.Ransom.Locky.DN
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.Locky.DN
AhnLab-V3 Win-Trojan/RansomCrypt.Exp
Acronis suspicious
McAfee Ransom-Locky!26B95EAAE2DA
MAX malware (ai score=100)
VBA32 Trojan.FakeAV.01657
Malwarebytes Trojan.PasswordStealer
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_CERBER.SMALY0
Rising Spyware.Zbot!8.16B (C64:YzY0OtE9xgTYlfoJ)
Yandex Trojan.GenAsa!cDZDHmLo1gc
Ikarus Trojan-Ransom.Locky
Fortinet W32/Kryptik.GKMB!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Ransom.Locky.HxQBEpsA

How to remove Win32/Spy.Zbot.ACZ 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/Spy.Zbot.ACZ 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/Spy.Zbot.ACZ 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/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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