TrojanProxy:Win32/Koobface!A

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

What is TrojanProxy:Win32/Koobface!A infection?

In this short article you will certainly discover regarding the definition of TrojanProxy:Win32/Koobface!A and its negative effect on your computer. Such ransomware are a form of malware that is specified by online scams to require paying the ransom by a victim.

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In the majority of the instances, TrojanProxy:Win32/Koobface!A infection will certainly advise its victims to start funds move for the objective of neutralizing the amendments that the Trojan infection has actually introduced to the target’s device.

TrojanProxy:Win32/Koobface!A Summary

These adjustments can be as complies with:

  • Attempts to connect to a dead IP:Port (1 unique times);
  • Starts servers listening on 0.0.0.0:7171;
  • Drops a binary and executes it;
  • Uses Windows utilities for basic functionality;
  • Installs itself for autorun at Windows startup;
  • Attempts to modify proxy settings;
  • Creates a copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers located on the victim’s hard drive — so the target can no longer make use of the information;
  • Preventing regular accessibility to the victim’s workstation;

Related domains:

zz-dns.com Ransom:Win32/PornoAsset.645c6b9f
yy-dns.com Ransom:Win32/PornoAsset.645c6b9f

TrojanProxy:Win32/Koobface!A

One of the most normal networks where TrojanProxy:Win32/Koobface!A Ransomware are injected are:

  • By means of phishing e-mails;
  • As a consequence of individual winding up on a resource that hosts a harmful software program;

As soon as the Trojan is efficiently infused, it will either cipher the information on the victim’s computer or protect against the tool from working in a correct way – while also putting a ransom note that points out the need for the sufferers to effect the payment for the objective of decrypting the documents or bring back the file system back to the preliminary problem. In most instances, the ransom money note will turn up when the client reboots the COMPUTER after the system has actually already been harmed.

TrojanProxy:Win32/Koobface!A distribution networks.

In various corners of the globe, TrojanProxy:Win32/Koobface!A grows by jumps as well as bounds. Nevertheless, the ransom money notes as well as methods of extorting the ransom money quantity may differ depending on particular neighborhood (local) setups. The ransom money notes as well as methods of obtaining the ransom amount may differ depending on particular local (local) setups.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software application.

    In specific locations, the Trojans usually wrongfully report having actually discovered some unlicensed applications made it possible for on the victim’s device. The alert after that requires the user to pay the ransom.

    Faulty statements about unlawful content.

    In countries where software application piracy is less popular, this method is not as effective for the cyber scams. Conversely, the TrojanProxy:Win32/Koobface!A popup alert may incorrectly claim to be deriving from a law enforcement establishment and also will certainly report having situated kid porn or various other prohibited information on the device.

    TrojanProxy:Win32/Koobface!A popup alert may falsely claim to be acquiring from a regulation enforcement establishment as well as will report having located child pornography or various other unlawful information on the tool. The alert will similarly have a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: A9FD468E
md5: c79c5bf537e76d343e76bb5968ad9f3d
name: C79C5BF537E76D343E76BB5968AD9F3D.mlw
sha1: bd436d35612e6f197f5c10a29996c897d2f76413
sha256: 42b4517875860e2b88c3479258386b17069dc45f1b1d7bb209299c992317273d
sha512: c8a08325a99ea7e4b1cd8e7fad6e423b05e76eecede76d9c35d96a5fdd21421b4e49451f15320e4bfef82fa6192dd734cc702a1fcfd0ddaf2380d41ee2419846
ssdeep: 384:uVV87JSrakdmY0IIVwRu5Zxif00bd1h6rlBKyGUrG6dYRRTTF:uVWaduwRu5s00wrxGUrG6+RRTTF
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

TrojanProxy:Win32/Koobface!A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 000906541 )
Elastic malicious (high confidence)
DrWeb Trojan.Proxy.10557
Cynet Malicious (score: 100)
McAfee Artemis!C79C5BF537E7
Cylance Unsafe
Zillya Trojan.Tinxy.Win32.109
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Ransom:Win32/PornoAsset.645c6b9f
K7GW Trojan ( 000906541 )
Cybereason malicious.537e76
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Tinxy.AD
APEX Malicious
Avast Win32:Agent-AFAZ [Trj]
ClamAV Win.Worm.Koobface-27
Kaspersky Trojan-Ransom.Win32.PornoAsset.cvew
BitDefender Gen:Variant.Ransom.Converton.8
NANO-Antivirus Trojan.Win32.BHO.ecivph
MicroWorld-eScan Gen:Variant.Ransom.Converton.8
Tencent Win32.Trojan.Pornoasset.Szlk
Ad-Aware Gen:Variant.Ransom.Converton.8
Sophos Mal/Generic-R + Mal/Behav-150
BitDefenderTheta AI:Packer.2910A0A51E
VIPRE Trojan.Win32.Generic!BT
TrendMicro Mal_Koob-3
McAfee-GW-Edition BehavesLike.Win32.KeylogSCLog.mh
FireEye Generic.mg.c79c5bf537e76d34
Emsisoft Gen:Variant.Ransom.Converton.8 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.PornoAsset.epj
Avira TR/BHO.Gen
Antiy-AVL Trojan/Generic.ASMalwS.189E798
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft TrojanProxy:Win32/Koobface.gen!A
AegisLab Trojan.Win32.PornoAsset.j!c
GData Gen:Variant.Ransom.Converton.8
AhnLab-V3 Malware/Win32.RL_Generic.R328466
Acronis suspicious
VBA32 Hoax.PornoAsset
MAX malware (ai score=100)
Panda Trj/Genetic.gen
TrendMicro-HouseCall Mal_Koob-3
Rising Trojan.Tinxy!1.685E (CLASSIC)
Ikarus Win32.Worm.Koobface
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Tinxy.AD!tr
AVG Win32:Agent-AFAZ [Trj]
Paloalto generic.ml

How to remove TrojanProxy:Win32/Koobface!A virus?

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 TrojanProxy:Win32/Koobface!A 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 TrojanProxy:Win32/Koobface!A 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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