Backdoor:MSIL/Quasar.GG!MTB
Daniel Foster
Updated on February 16, 2026
What is Backdoor:MSIL/Quasar.GG!MTB infection?
In this short article you will find regarding the interpretation of Backdoor:MSIL/Quasar.GG!MTB as well as its unfavorable effect on your computer system. Such ransomware are a type of malware that is specified by on-line frauds to demand paying the ransom by a victim.
In the majority of the cases, Backdoor:MSIL/Quasar.GG!MTB virus will certainly instruct its victims to start funds move for the function of neutralizing the amendments that the Trojan infection has actually presented to the target’s gadget.
Backdoor:MSIL/Quasar.GG!MTB Summary
These alterations can be as follows:
- The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
- 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 files found on the sufferer’s hard disk — so the sufferer can no longer use the information;
- Preventing routine access 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.
| z.whorecord.xyz | Gen:Variant.Ransom.Fantom.4 |
| a.tomx.xyz | Gen:Variant.Ransom.Fantom.4 |
Backdoor:MSIL/Quasar.GG!MTB
One of the most common channels whereby Backdoor:MSIL/Quasar.GG!MTB Trojans are infused are:
- By ways of phishing e-mails;
- As an effect of user ending up on a resource that holds a harmful software program;
As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the target’s computer or prevent the tool from operating in an appropriate manner – while also positioning a ransom money note that points out the requirement for the victims to effect the payment for the purpose of decrypting the papers or restoring the documents system back to the preliminary condition. In most instances, the ransom money note will show up when the client reboots the PC after the system has currently been damaged.
Backdoor:MSIL/Quasar.GG!MTB circulation networks.
In various edges of the world, Backdoor:MSIL/Quasar.GG!MTB expands by jumps and bounds. However, the ransom money notes as well as tricks of obtaining the ransom quantity might vary depending on specific local (local) setups. The ransom money notes and techniques of extorting the ransom money quantity may vary depending on specific local (local) settings.
As an example:
Faulty notifies regarding unlicensed software.
In specific areas, the Trojans commonly wrongfully report having discovered some unlicensed applications enabled on the victim’s gadget. The sharp after that demands the individual to pay the ransom.
Faulty declarations regarding prohibited content.
In countries where software program piracy is less prominent, this approach is not as efficient for the cyber fraudulences. Conversely, the Backdoor:MSIL/Quasar.GG!MTB popup alert might falsely claim to be originating from a police establishment as well as will certainly report having located child porn or other prohibited data on the device.
Backdoor:MSIL/Quasar.GG!MTB popup alert might falsely declare to be obtaining from a legislation enforcement organization as well as will report having located youngster pornography or various other prohibited information on the gadget. The alert will likewise consist of a demand for the customer to pay the ransom money.
Technical details
File Info:
crc32: 40E3614Emd5: 4c9b2adcdd57b946b6e7d28f47e85a60name: 4C9B2ADCDD57B946B6E7D28F47E85A60.mlwsha1: a62c148710ab018cb90610bfe5767161be2b7509sha256: a58fb6de4a47be168d885dd9f1fe2a680cb0402f9d3dbfe82c4f5fe04b720b00sha512: b6876d556776120731cf8f4546d5728c8b0804dffac5afa6151383356f81dac91905fbbc680bbced354d22340441cca30eaf2275e6de3446097b6cb0b41bfdffssdeep: 12288:bh1Lk70TnvjcJsnZxfEX2J9WvoY/qLJnMOk26kko7WaEzydM1BtHL:nk70TrckZ5EUWvomq6OnyPz53tHLtype: PE32 executable (GUI) Intel 80386, for MS WindowsVersion Info:
LegalCopyright: xa9 Microsoft Corporation. All rights reserved.InternalName: svchost.exeFileVersion: 6.1.7600.16385 (win7_rtm.090713-1255)CompanyName: Microsoft CorporationProductName: Microsoftxae Windowsxae Operating SystemProductVersion: 6.1.7600.16385FileDescription: Host Process for Windows ServicesOriginalFilename: svchost.exeTranslation: 0x0409 0x04b0
Backdoor:MSIL/Quasar.GG!MTB also known as:
| GridinSoft | Trojan.Ransom.Gen |
| Bkav | W32.AIDetect.malware1 |
| K7AntiVirus | Trojan ( 0055e3e71 ) |
| Elastic | malicious (high confidence) |
| Cynet | Malicious (score: 100) |
| ALYac | Gen:Variant.Ransom.Fantom.4 |
| Sangfor | Trojan.Win32.Save.a |
| CrowdStrike | win/malicious_confidence_100% (D) |
| Alibaba | TrojanSpy:MSIL/Quasar.99fcdd69 |
| K7GW | Trojan ( 0055e3e71 ) |
| Cybereason | malicious.cdd57b |
| Symantec | ML.Attribute.HighConfidence |
| ESET-NOD32 | a variant of MSIL/Agent.CYM |
| APEX | Malicious |
| Avast | Win32:Malware-gen |
| Kaspersky | Trojan-Spy.MSIL.Quasar.fcx |
| BitDefender | Gen:Variant.Ransom.Fantom.4 |
| NANO-Antivirus | Trojan.Win32.Quasar.fhpzlr |
| MicroWorld-eScan | Gen:Variant.Ransom.Fantom.4 |
| Tencent | Msil.Trojan-spy.Quasar.Pftr |
| Ad-Aware | Gen:Variant.Ransom.Fantom.4 |
| Sophos | Mal/Generic-S |
| Comodo | Malware@#2e8o4uxtnq38l |
| BitDefenderTheta | Gen:NN.ZexaF.34722.Tq0@aKwlptp |
| VIPRE | Trojan.Win32.Generic!BT |
| McAfee-GW-Edition | BehavesLike.Win32.Generic.bc |
| FireEye | Generic.mg.4c9b2adcdd57b946 |
| Emsisoft | Gen:Variant.Ransom.Fantom.4 (B) |
| SentinelOne | Static AI – Malicious PE |
| Avira | HEUR/AGEN.1135947 |
| eGambit | Unsafe.AI_Score_99% |
| Antiy-AVL | Trojan/Generic.ASMalwS.1744CD3 |
| Microsoft | Backdoor:MSIL/Quasar.GG!MTB |
| AegisLab | Trojan.MSIL.Quasar.l!c |
| ZoneAlarm | Trojan-Spy.MSIL.Quasar.fcx |
| GData | Gen:Variant.Ransom.Fantom.4 |
| Acronis | suspicious |
| McAfee | Artemis!4C9B2ADCDD57 |
| MAX | malware (ai score=100) |
| VBA32 | TrojanSpy.MSIL.Quasar |
| Rising | Trojan.Generic@ML.100 (RDML:Dj/MEdmHkTQezq4h02g/uA) |
| Ikarus | Trojan.MSIL.Agent |
| Fortinet | MSIL/Agent.APP!tr.spy |
| AVG | Win32:Malware-gen |
| Paloalto | generic.ml |
How to remove Backdoor:MSIL/Quasar.GG!MTB ransomware?
There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.
Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
Download GridinSoft Anti-MalwareRun 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.
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.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your system for Backdoor:MSIL/Quasar.GG!MTB 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.
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.
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 Anti-Malware
If the guide doesn’t help you to remove Backdoor:MSIL/Quasar.GG!MTB you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
