Trojan.Win32.AddUser.qo
Daniel Foster
Updated on February 18, 2026
What is Trojan.Win32.AddUser.qo infection?
In this post you will certainly discover regarding the meaning of Trojan.Win32.AddUser.qo and also its adverse effect on your computer system. Such ransomware are a kind of malware that is elaborated by on the internet fraudulences to demand paying the ransom money by a victim.
In the majority of the instances, Trojan.Win32.AddUser.qo virus will advise its sufferers to initiate funds transfer for the objective of reducing the effects of the amendments that the Trojan infection has presented to the sufferer’s tool.
Trojan.Win32.AddUser.qo Summary
These alterations can be as adheres to:
- Executable code extraction;
- Creates RWX memory;
- Reads data out of its own binary image;
- Unconventionial binary language: Chinese (Simplified);
- Unconventionial language used in binary resources: Chinese (Simplified);
- Uses Windows utilities for basic functionality;
- Installs itself for autorun at Windows startup;
- Anomalous binary characteristics;
- Ciphering the papers located on the sufferer’s hard disk — so the target can no longer make use of the information;
- Preventing normal accessibility to the sufferer’s workstation;
Trojan.Win32.AddUser.qo
The most typical channels where Trojan.Win32.AddUser.qo Ransomware Trojans are infused are:
- By methods of phishing emails;
- As a consequence of user ending up on a source that hosts a harmful software;
As soon as the Trojan is successfully injected, it will either cipher the information on the sufferer’s computer or prevent the gadget from functioning in a correct way – while also positioning a ransom note that points out the need for the sufferers to effect the payment for the purpose of decrypting the papers or restoring the data system back to the initial problem. In most circumstances, the ransom money note will certainly turn up when the client reboots the COMPUTER after the system has actually currently been harmed.
Trojan.Win32.AddUser.qo circulation networks.
In numerous corners of the globe, Trojan.Win32.AddUser.qo expands by jumps as well as bounds. Nonetheless, the ransom notes as well as techniques of obtaining the ransom money quantity may differ depending upon particular regional (regional) setups. The ransom notes as well as techniques of extorting the ransom amount may vary depending on particular neighborhood (regional) settings.
For instance:
Faulty notifies concerning unlicensed software.
In certain locations, the Trojans often wrongfully report having actually detected some unlicensed applications allowed on the victim’s device. The sharp then requires the user to pay the ransom.
Faulty statements about unlawful material.
In countries where software program piracy is much less prominent, this method is not as efficient for the cyber scams. Additionally, the Trojan.Win32.AddUser.qo popup alert may incorrectly assert to be deriving from a law enforcement establishment and will report having situated child pornography or other unlawful information on the tool.
Trojan.Win32.AddUser.qo popup alert may falsely claim to be obtaining from a regulation enforcement institution as well as will certainly report having located kid porn or various other illegal data on the tool. The alert will similarly consist of a demand for the individual to pay the ransom money.
Technical details
File Info:
crc32: 0B685589md5: 5989e3c16b36f69703ea18fe631b7df6name: 5989E3C16B36F69703EA18FE631B7DF6.mlwsha1: 59fd6e1336389c6d0fc837599dbcae1d20be69fcsha256: 6adf520f5dc98f91f23e524e79502edf2e1e45f110a5a6ef3430f552e9313c90sha512: 6b2e75edff8a0204f38e538eeef3d79879886ab7b0648c789ff27dca9bbaec345c7d036a7b981f0ddb7e606fe7d9b69c60773f1b910a91583f299ab01f8b96bcssdeep: 24576:0h1nKbiEthvaHpYgNmXXuE0DECh+ZKCuZe+jOWy:0h1ajvKE90DF4ZKV3jO5type: PE32 executable (GUI) Intel 80386, for MS WindowsVersion Info:
LegalCopyright: x4f5cx8005x7248x6743x6240x6709 x8bf7x5c0ax91cdx5e76x4f7fx7528x6b63x7248FileVersion: 1.0.0.0Comments: x672cx7a0bx5e8fx4f7fx7528x6613x8bedx8a00x7f16x5199()ProductName: x6613x8bedx8a00x7a0bx5e8fProductVersion: 1.0.0.0FileDescription: x6613x8bedx8a00x7a0bx5e8fTranslation: 0x0804 0x04b0
Trojan.Win32.AddUser.qo also known as:
| GridinSoft | Trojan.Ransom.Gen |
| Bkav | W32.AIDetect.malware2 |
| K7AntiVirus | Adware ( 004b8bcf1 ) |
| Elastic | malicious (high confidence) |
| Cynet | Malicious (score: 100) |
| CAT-QuickHeal | Trojan.Wacatac |
| Cylance | Unsafe |
| Zillya | Trojan.Vilsel.Win32.37614 |
| Sangfor | Trojan.Win32.FlyStudio.A |
| Alibaba | Trojan:Win32/AddUser.fdc874cb |
| K7GW | Adware ( 004b8bcf1 ) |
| Cybereason | malicious.336389 |
| Cyren | W32/S-2e9182a2!Eldorado |
| ESET-NOD32 | a variant of Win32/Packed.FlyStudio potentially unwanted |
| Zoner | Trojan.Win32.92118 |
| APEX | Malicious |
| Avast | Win32:Malware-gen |
| ClamAV | Win.Malware.Flystudio-6937682-0 |
| Kaspersky | Trojan.Win32.AddUser.qo |
| ViRobot | Trojan.Win32.Z.Flystudio.901796 |
| Tencent | Win32.Ransomware.Bp-winlock.Labv |
| Sophos | Mal/Generic-S |
| Comodo | TrojWare.Win32.Agent.pkd@1qu9um |
| BitDefenderTheta | Gen:NN.ZexaCO.34686.3u3@ay6Kofmb |
| VIPRE | Backdoor.Win32.FlyAgent.h (v) |
| McAfee-GW-Edition | BehavesLike.Win32.Triusor.cc |
| FireEye | Generic.mg.5989e3c16b36f697 |
| Emsisoft | Trojan.Agent (A) |
| SentinelOne | Static AI – Suspicious PE |
| Microsoft | Trojan:Win32/Tiggre!rfn |
| Gridinsoft | Trojan.Win32.Gen.bot!i |
| AegisLab | Trojan.Win32.Generic.4!c |
| GData | Win32.Trojan.FlyStudio.A |
| Acronis | suspicious |
| McAfee | Artemis!5989E3C16B36 |
| VBA32 | BScope.TrojanRansom.Blocker |
| Malwarebytes | PUP.Optional.ChinAd |
| TrendMicro-HouseCall | TROJ_GEN.R002H0CDR21 |
| Rising | Trojan.AddUser!8.E12 (CLOUD) |
| Ikarus | Trojan.Bluteal |
| Fortinet | W32/Generic.AP.14793D8!tr |
| AVG | Win32:Malware-gen |
| Paloalto | generic.ml |
How to remove Trojan.Win32.AddUser.qo virus?
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 Trojan.Win32.AddUser.qo 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 Trojan.Win32.AddUser.qo you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
