Win32:Zbot-PRP [Trj]

Written by Robert Bailey

What is Win32:Zbot-PRP [Trj] infection?

In this post you will find about the meaning of Win32:Zbot-PRP [Trj] and also its negative influence on your computer system. Such ransomware are a kind of malware that is clarified by on the internet frauds to require paying the ransom by a sufferer.

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Most of the instances, Win32:Zbot-PRP [Trj] infection will advise its targets to start funds move for the objective of reducing the effects of the changes that the Trojan infection has presented to the victim’s device.

Win32:Zbot-PRP [Trj] Summary

These modifications 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;
  • Attempts to connect to a dead IP:Port (2 unique times);
  • 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;
  • A process attempted to delay the analysis task.;
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • Starts servers listening on 0.0.0.0:34757, :0, 127.0.0.1:21460;
  • Expresses interest in specific running processes;
  • 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.

  • 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;
  • Code injection with CreateRemoteThread in a remote process;
  • Deletes its original binary from disk;
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • Steals private information from local Internet browsers;
  • A system process is generating network traffic likely as a result of process injection;
  • Behavior consistent with a dropper attempting to download the next stage.;
  • 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 Zeus (Banking Trojan) mutexes;
  • Zeus P2P (Banking Trojan);
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to modify browser security settings;
  • Harvests credentials from local FTP client softwares;
  • Attempts to interact with an Alternate Data Stream (ADS);
  • Creates a slightly modified 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 located on the sufferer’s hard drive — so the victim can no more utilize the information;
  • Preventing routine access to the victim’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.Cerber.1
a.tomx.xyz Trojan.Ransom.Cerber.1
vitamingraphic.pl Trojan.Ransom.Cerber.1
lajogrodushope.pl Trojan.Ransom.Cerber.1

Win32:Zbot-PRP [Trj]

The most common networks whereby Win32:Zbot-PRP [Trj] Trojans are infused are:

  • By ways of phishing e-mails;
  • As a consequence of user ending up on a resource that hosts a destructive software;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s PC or protect against the tool from functioning in a proper manner – while likewise placing a ransom note that states the requirement for the victims to effect the settlement for the function of decrypting the papers or bring back the file system back to the first problem. In the majority of circumstances, the ransom note will come up when the client reboots the PC after the system has actually currently been harmed.

Win32:Zbot-PRP [Trj] distribution networks.

In various corners of the world, Win32:Zbot-PRP [Trj] expands by jumps as well as bounds. Nevertheless, the ransom notes and also methods of obtaining the ransom quantity might differ relying on specific regional (regional) setups. The ransom money notes as well as techniques of extorting the ransom money amount may differ depending on particular regional (local) setups.

Ransomware injection

For instance:

    Faulty signals about unlicensed software program.

    In certain areas, the Trojans typically wrongfully report having identified some unlicensed applications allowed on the sufferer’s gadget. The sharp then requires the individual to pay the ransom.

    Faulty declarations concerning unlawful content.

    In nations where software application piracy is less prominent, this approach is not as efficient for the cyber scams. Additionally, the Win32:Zbot-PRP [Trj] popup alert may falsely assert to be originating from a police organization and also will report having situated child porn or other illegal information on the tool.

    Win32:Zbot-PRP [Trj] popup alert might falsely declare to be obtaining from a regulation enforcement institution and will certainly report having situated kid pornography or various other unlawful data on the device. The alert will in a similar way contain a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 7D88F5A2
md5: cc8b0cf21e76c8c83e5e5f0e64d1303c
name: CC8B0CF21E76C8C83E5E5F0E64D1303C.mlw
sha1: 4f6cd4162f28f8fed77108c5edc6d9760bd2aea6
sha256: a333d2918ec18facfccee3fdfb254607c9e80ce8817e7d8d7bf023ba7a5152e0
sha512: d8944cdcba3b5e06ec0abcd94d3d0e6594bd164e59554d6927e9529de60a3928130e4a9bc95b4debd5c2352e82b602af74706e24cebbb088c935981d58574c4f
ssdeep: 3072:SuA5eFgw8DcwnPdPdmbXLCqFp1M4xZLNDMXOEJHvbdpoYE64Scn9cVyCl9e:SuHGDBFPd6Vp1M0ZmXFvJb+mVyce
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32:Zbot-PRP [Trj] also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Spyware ( 0029a43a1 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Panda.2401
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Cerber.1
Cylance Unsafe
Zillya Trojan.Zbot.Win32.86219
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
K7GW Spyware ( 0029a43a1 )
Cybereason malicious.21e76c
Cyren W32/Trojan.ZBVH-6821
Symantec Trojan.Zbot!gen40
ESET-NOD32 Win32/Spy.Zbot.AAO
APEX Malicious
Avast Win32:Zbot-PRP [Trj]
Kaspersky UDS:Trojan-Spy.Win32.Zbot.gen
BitDefender Trojan.Ransom.Cerber.1
ViRobot Trojan.Win32.A.Zbot.211456.BN
MicroWorld-eScan Trojan.Ransom.Cerber.1
Tencent Win32.Trojan-spy.Zbot.Tayt
Ad-Aware Trojan.Ransom.Cerber.1
Sophos Mal/Generic-S
Comodo Malware@#13jou7z8i6ldb
BitDefenderTheta Gen:NN.ZexaF.34692.mmX@aWXN7Sb
VIPRE Trojan.Win32.Zbot.n (v)
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
FireEye Generic.mg.cc8b0cf21e76c8c8
Emsisoft Trojan.Ransom.Cerber.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Generic.aorja
Webroot W32.Malware.Gen
Avira TR/Crypt.ZPACK.Gen8
Antiy-AVL Trojan/Generic.ASMalwS.2629F2
Microsoft PWS:Win32/Zbot!CI
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.Cerber.1
AhnLab-V3 Spyware/Win32.Zbot.R39520
Acronis suspicious
McAfee GenericRXDS-QO!CC8B0CF21E76
MAX malware (ai score=81)
VBA32 TScope.Malware-Cryptor.SB
Panda Trj/Genetic.gen
Rising Spyware.Zbot!8.16B (RDMK:cmRtazoGaWW2K0n6ZnC1x/xRaJSy)
Yandex TrojanSpy.Zbot!DvPKcZJov/w
Ikarus Trojan-PWS.Win32.Zbot
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Zbot.ASJ!tr
AVG Win32:Zbot-PRP [Trj]
Paloalto generic.ml

How to remove Win32:Zbot-PRP [Trj] 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 Win32:Zbot-PRP [Trj] 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 Win32:Zbot-PRP [Trj] 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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