Trojan

How to remove Koobface Trojan from PC?

In this article, I am going to detail how the Koobface trojan infused into your computer, and also the best way to delete Koobface trojan virus.

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What is Koobface trojan?

Name Koobface
Infection Type Trojan
Symptoms
  • Sample contains Overlay data;
  • Unconventionial binary language: Russian;
  • Unconventionial language used in binary resources: Russian;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • The executable is compressed using UPX;
  • Authenticode signature is invalid;
  • Yara detections observed in process dumps, payloads or dropped files;
Similar behavior Fapack, Seheq, Audhi, Risepro, MakeExt, Slanret
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See If Your System Has Been Affected by Koobface trojan

Trojan The name of this type of malware is a reference to a widely known tale regarding Trojan Horse, which was put to work by Greeks to enter the city of Troy and win the war. Like a fake horse that was made for trojans as a present, Koobface trojan virus is dispersed like something legit, or, at least, helpful. Harmful applications are stashing inside of the Koobface trojan virus, like Greeks within a huge wooden dummy of a horse.1

Trojan viruses are one of the leading malware kinds by its injection rate for quite a very long time. And now, during the pandemic, when malware became extremely active, trojan viruses increased their activity, too. You can see a number of messages on diverse resources, where people are whining about the Koobface trojan virus in their computer systems, and asking for aid with Koobface trojan virus removal.

Trojan Koobface is a type of virus that infiltrates into your system, and then performs various malicious functions. These functions depend upon a sort of Koobface trojan: it may serve as a downloader for additional malware or as a launcher for another destructive program which is downloaded in addition to the Koobface trojan. Throughout the last two years, trojans are likewise dispersed via email attachments, and most of cases used for phishing or ransomware infiltration.

Koobface2 also known as

Bkav W32.AIDetectMalware
Lionic Worm.Win32.Koobface.p!c
MicroWorld-eScan Gen:Variant.Ransom.Nemty.17
FireEye Generic.mg.18812d503dee9acc
Skyhigh GenericRXKI-GC!68AD72DFBF91
ALYac Gen:Variant.Ransom.Nemty.17
Cylance unsafe
Zillya Worm.Koobface.Win32.6766
Sangfor Trojan.Win32.Save.a
K7AntiVirus Riskware ( 0040eff71 )
Alibaba Worm:Win32/Koobface.ae347505
K7GW Riskware ( 0040eff71 )
Cybereason malicious.03dee9
BitDefenderTheta AI:Packer.DB2C6E951F
Symantec ML.Attribute.HighConfidence
Elastic malicious (moderate confidence)
ESET-NOD32 a variant of Win32/Spammer.Agent.J
APEX Malicious
TrendMicro-HouseCall TROJ_KOOBFACE_000000c.TOMA
ClamAV Win.Worm.Koobface-365
Kaspersky Net-Worm.Win32.Koobface.babd
BitDefender Gen:Variant.Ransom.Nemty.17
NANO-Antivirus Trojan.Win32.Koobface.kxzvx
Avast Win32:Downloader-GQF [Trj]
Tencent Malware.Win32.Gencirc.13c1b5fd
Emsisoft Gen:Variant.Ransom.Nemty.17 (B)
F-Secure Trojan.TR/Spy.Gen
DrWeb Win32.HLLW.Facebook.989
VIPRE Gen:Variant.Ransom.Nemty.17
TrendMicro TROJ_KOOBFACE_000000c.TOMA
Trapmine malicious.high.ml.score
Sophos Mal/Generic-S
SentinelOne Static AI – Malicious PE
Jiangmin Worm/Koobface.bof
Google Detected
Avira TR/Spy.Gen
Varist W32/Koobface.R.gen!Eldorado
Antiy-AVL Worm[Net]/Win32.Koobface
Kingsoft Win32.Troj.Undef.a
Microsoft Trojan:Win32/Koobface.K
Xcitium TrojWare.Win32.Agent.tmbl@3z144o
Arcabit Trojan.Ransom.Nemty.17
ViRobot Worm.Win32.A.Net-Koobface.57864.A[UPX]
ZoneAlarm Net-Worm.Win32.Koobface.babd
GData Gen:Variant.Ransom.Nemty.17
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Jorik.R4582
McAfee Artemis!18812D503DEE
MAX malware (ai score=100)
VBA32 BScope.Worm.Koobface
Panda Trj/Genetic.gen
Rising Trojan.Koobface!8.CD6 (TFE:5:1oO4FbbcIeP)
Yandex Worm.Koobface!uqicOsPUL/c
Ikarus Trojan.Win32.Jorik
MaxSecure Trojan.Malware.2076871.susgen
Fortinet W32/KoobFace.IED!tr
AVG Win32:Downloader-GQF [Trj]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (W)
alibabacloud Worm[net]:Win/Koobface.babd

What are the symptoms of Koobface trojan?

  • Sample contains Overlay data;
  • Unconventionial binary language: Russian;
  • Unconventionial language used in binary resources: Russian;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • The executable is compressed using UPX;
  • Authenticode signature is invalid;
  • Yara detections observed in process dumps, payloads or dropped files;

The usual sign of the Koobface trojan virus is a progressive entrance of various malware – adware, browser hijackers, and so on. Due to the activity of these destructive programs, your PC comes to be really slow: malware uses up substantial quantities of RAM and CPU abilities.

One more noticeable effect of the Koobface trojan virus presence is unknown processes showed in task manager. Often, these processes may attempt to imitate system processes, but you can recognize that they are not legit by looking at the origin of these tasks. Pseudo system applications and Koobface trojan’s processes are always specified as a user’s tasks, not as a system’s.

How to remove Koobface trojan virus?

  • Download and install Loaris Trojan Remover.
  • Open Loaris and perform a “Standard scan“.
  • “Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Approve the reset pressing “Yes” button in the appeared window.
  • Restart your computer.

To remove Koobface trojan and also be sure that all additional malware, downloaded with the help of this trojan, will certainly be wiped out, as well, I’d recommend you to use Loaris Trojan Remover.

Loaris Trojan RemoverKoobface trojan virus is truly tough to erase by hand. Its pathways are really hard to track, as well as the changes implemented by the Koobface trojan are hidden deeply within the system. So, the chance that you will make your system 100% clean of trojans is very low. And also don't forget about malware that has been downloaded and install with the help of the Koobface trojan virus. I feel that these arguments suffice to assure that removing the trojan virus manually is an awful concept.

Koobface removal guide

To spot and remove all viruses on your personal computer using Loaris, it’s better to make use of Standard or Full scan. Removable scan, as well as Custom, will check only specified directories, so such types of scans are not able to provide the full information.

Scan types in Loaris

You can spectate the detects during the scan process goes. However, to execute any actions against detected malware, you need to wait until the scan is finished, or to stop the scan.

Loaris during the scan

To choose the special action for each detected malicious programs, choose the knob in front of the name of detected viruses. By default, all malicious programs will be moved to quarantine.

Loaris Trojan Remover after the scan process

How to remove Koobface Trojan?

Name: Koobface

Description: Trojan Koobface is a kind of virus that infiltrates into your computer, and after that performs different destructive functions. These features depend upon a type of Koobface trojan: it can act as a downloader for many other malware or as a launcher for another destructive program which is downloaded in addition to the Koobface trojan. During the last two years, trojans are also dispersed via e-mail attachments, and most of situations utilized for phishing or ransomware infiltration.

Operating System: Windows

Application Category: Trojan

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  1. What is Trojan Horse: https://en.wikipedia.org/wiki/Trojan_horse_(computing)
  2. Koobface VirusTotal Report: https://www.virustotal.com/api/v3/files/032a8e35be5406d2b61287ad40a91eb5aa6178f36da9a432ee2a3528fd953e7d

Helga Smith

I was always interested in computer sciences, especially in data security and the theme, which is called nowadays "data science", since my early teens. Because I was lack of related literature, I tried to find something in the Web, so, virus injections was usual for me. That's why I've got quite high skill while dealing with viruses on my computer. When I heard about the website with different guidelines about virus removal and anti-virus programs, I've joined him with no doubt. Before coming into Virusremoval team as Editor-in-chief, I was working as cybersecurity expert several companies, including one of Amazon contractors. Another experience I have got is teaching in Arden and Reading universities.

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