VirTool:Win32/Obfuscator.ADR

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

What is VirTool:Win32/Obfuscator.ADR infection?

In this article you will locate concerning the meaning of VirTool:Win32/Obfuscator.ADR and also its adverse impact on your computer system. Such ransomware are a form of malware that is elaborated by on the internet frauds to demand paying the ransom money by a victim.

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Most of the cases, VirTool:Win32/Obfuscator.ADR virus will certainly instruct its sufferers to start funds move for the objective of neutralizing the amendments that the Trojan infection has actually introduced to the sufferer’s device.

VirTool:Win32/Obfuscator.ADR Summary

These adjustments can be as adheres to:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the sufferer’s hard drive — so the target can no more make use of the information;
  • Preventing normal accessibility to the victim’s workstation;

VirTool:Win32/Obfuscator.ADR

One of the most common channels through which VirTool:Win32/Obfuscator.ADR Trojans are injected are:

  • By methods of phishing emails;
  • As an effect of user ending up on a resource that organizes a harmful software program;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the target’s computer or avoid the tool from working in an appropriate fashion – while also placing a ransom money note that mentions the requirement for the victims to impact the payment for the purpose of decrypting the files or restoring the data system back to the initial condition. In most circumstances, the ransom note will turn up when the customer restarts the COMPUTER after the system has actually already been harmed.

VirTool:Win32/Obfuscator.ADR distribution channels.

In numerous edges of the world, VirTool:Win32/Obfuscator.ADR expands by jumps and also bounds. Nevertheless, the ransom notes and also techniques of obtaining the ransom money quantity might vary relying on particular neighborhood (local) setups. The ransom notes as well as methods of extorting the ransom money amount might vary depending on certain regional (local) setups.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software application.

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

    Faulty declarations concerning prohibited web content.

    In countries where software application piracy is much less popular, this approach is not as reliable for the cyber fraudulences. Conversely, the VirTool:Win32/Obfuscator.ADR popup alert may falsely declare to be originating from a police institution and also will certainly report having situated youngster porn or various other prohibited information on the device.

    VirTool:Win32/Obfuscator.ADR popup alert may incorrectly claim to be deriving from a law enforcement establishment and also will certainly report having located kid pornography or other unlawful information on the gadget. The alert will in a similar way have a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 25C748A8
md5: 4edcc90dfd3d0f19126cdb0595588a59
name: 4EDCC90DFD3D0F19126CDB0595588A59.mlw
sha1: 120b8f102c3a0631f1fc8d3a62c2ff3ee6558d08
sha256: 9c14b7db90e63f57457c16d4dcb0186d8c94d6c9b3058265f3604d8508878ec9
sha512: 8ef049940a23e3eb483c64b8ad78d39ccb2a08a65514d428bb96f69f8ed8b021fc9205670c6c9a6b80fff2297842ecfbb337e52cc0a4063dac25426d3282edbf
ssdeep: 1536:uakVWmqqg3qzlB1uzbKEfbh47Ybw15zxPmbsLGMGQJKL5UP9vvvSEHSCR:ualmqd3qBcfb/wPz4bq0gv3JyC
type: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows

Version Info:

0: [No Data]

VirTool:Win32/Obfuscator.ADR also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Gen:Variant.Symmi.8604
Cylance Unsafe
Sangfor Ransom.Win32.Foreign.sb
CrowdStrike win/malicious_confidence_80% (D)
K7GW Riskware ( 0040eff71 )
Cybereason malicious.dfd3d0
Symantec Trojan.Shylock
ESET-NOD32 a variant of Win32/Injector.ZHO
APEX Malicious
Avast Win32:Crypt-OJD [Trj]
Kaspersky UDS:Trojan-Ransom.Win32.Foreign.sb
BitDefender Gen:Variant.Symmi.8604
NANO-Antivirus Trojan.Win32.Zbot.dernvl
MicroWorld-eScan Gen:Variant.Symmi.8604
Tencent Win32.Trojan.Ransom.Piau
Ad-Aware Gen:Variant.Symmi.8604
Sophos ML/PE-A + Mal/EncPk-AHQ
Comodo TrojWare.Win32.PWS.ZBot.AAA@4sq88d
BitDefenderTheta AI:Packer.6D671E9C1F
VIPRE Trojan-PWS.Win32.Zbot.aaa (v)
TrendMicro TROJ_RANSOM.SMWX
McAfee-GW-Edition PWS-Zbot.gen.arb
FireEye Generic.mg.4edcc90dfd3d0f19
Emsisoft Gen:Variant.Symmi.8604 (B)
SentinelOne Static AI – Suspicious PE
Avira TR/Dropper.Gen7
Antiy-AVL Trojan/Generic.ASMalwS.23D5402
Microsoft VirTool:Win32/Obfuscator.ADR
GData Gen:Variant.Symmi.8604
AhnLab-V3 Trojan/Win32.Gen
McAfee PWS-Zbot.gen.arb
MAX malware (ai score=80)
Panda Generic Malware
TrendMicro-HouseCall TROJ_RANSOM.SMWX
Rising Dropper.Generic!8.35E (CLOUD)
Yandex Trojan.Symmi!Bw1nwSJP8jU
Ikarus Trojan-Ransom.Foreign
Fortinet W32/Yakes.BKEJ!tr
AVG Win32:Crypt-OJD [Trj]
Paloalto generic.ml

How to remove VirTool:Win32/Obfuscator.ADR 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 VirTool:Win32/Obfuscator.ADR 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 VirTool:Win32/Obfuscator.ADR 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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