Virus removal and network security

Computer ads, browser homepages have been changed, files can't be opened and ransoms have to be paid-these are all poisoning signals. We do in-depth killing + system reinforcement + data rescue, and the machines in the ransomware virus don't panic first, most of them are still saved.

judge poisoning Deep kill process What if you're infected with a ransomware virus?real case price reference FAQ

Judgment poisoning: these 8 signals are in place

Many users think that "installing 360 is safe", in fact, more than half of the poisoned machines we received are equipped with various security software. The real signals of poisoning are these:

The browser homepage is blocked.: Change back to restart and change again, this is the typical behavior of hijacking Trojans, it modifies the browser shortcut parameters and registry multi-layer location.
Pop-up ads in the lower right corner of the desktop: Most of them are bundled and installed promotion programs, one software with a family bucket.
CPU/hard drive usage abnormally high: If you don't turn on the program fan, you may have won the mining Trojan horse — it will mine all the time when you don't use the computer.
File suffix changed, unable to open: For example,.docx becomes.docx.rmvb,.qq and other garbled suffixes, and leaves a blackmail description txt--this is a ransomware virus,Cut the grid, cut the power, don't do anything..
Online banking/payment prompt environment exception: There may be a keylogger.
Antivirus software is inexplicably closed and cannot be openedThe first thing a virus does is kill security software.
WeChat QQ automatically sends messages and adds friends: The account has been stolen or there is a Trojan horse on this computer.
USB flash drive plugged into another computer is also poisonedUSB flash drive virus will use autorun to spread among all plugged machines.

In-depth killing process: not click "full scan"

Ordinary users cannot kill the virus point scan, because many Trojans will protect themselves, inject system processes, and even infect normal files. Our killing is layered:

grid isolation: Prevent Trojans from spreading data, downloading new payloads, and infecting other machines in the local area network.
PE environmental inspection: Start with USB flash drive PE (do not load poisoning system), at this time the virus process does not run, self-protection failure, the highest killing rate. This step can kill 90% of the stubborn Trojan.
Initiate Item/Plan Task/Service Inventory: Check the registry Run key, service, scheduled task, WMI subscription one by one (the most favorite corner of mining Trojans in recent years).
Browser with Shortcuts Repair: Clear hijacking parameters, reset modified home page and search engine, uninstall bundled plugins.
Account Security Check: Remind you to change important account password (recommended to change on clean equipment), check WeChat QQ login record.
system hardeningOpen UAC, close unnecessary remote ports (3389/445), complete security patches, configure a non-rogue security software and teach you how to use it.

What to do with the blackmail virus: save first, stop loss if you can't save

Ransomware is the number one threat to corporate data security. Globally, ransomware attacks remain the number one cause of system failure in 2026. Our approach:

The first time the power is cut off, the grid is cut off.Ransomware scans the local area network horizontally for encrypted shared disks, NAS, and other computers. A power outage is the only action that stops the spread immediately.
Don't rush the ransom.You don't have to give the key (about a quarter of victims don't get their data back after paying), and you'll be marked as a "fat sheep willing to pay."
Forensics and encrypted sample analysis first.: Send us blackmail description files and encrypted samples, and compare virus families through ID Ransomware and other libraries.Some families have free decryption tools(Such as early CrySiS, GlobeImposter several variants, Phobos partial variants), can be free solution will never spend money.
Data Recovery① Find backup-check NAS historical snapshot, cloud disk historical version, Windows volume shadow copy (some viruses are not deleted);② Database files (.mdf/.dbf/financial software account set) are often not encrypted at the head, and most of the data can be rescued after repair with professional tools;③ If there is an old version of the encrypted original file on the disk (incomplete overwrite), the bottom scan has a chance to retrieve some.
Security must be restored after recovery: Poison entries are usually weak passwords remote desktop (3389), phishing email attachments, or cracking software. Do not block the entry, reload will be re-in.

⚠️ Three "don't's" when a suspected ransomware virus is detected:Do not continue to boot (encryption is still in progress); do not delete blackmail instructions and encrypted files (that is analysis sample); do not believe online "professional decryption" paid advertising (secondary harvest disaster area). Call us first, free to help you determine the virus family and salvability.

real case

This is how we help our clients solve problems.

Ransomware in Design Company, Volume Shadow Copy Recovery 90% of Project Files

In March 2026, a 20-person design company in Panyu was infected with Phobos ransomware in the early morning. The project files (about 2TB) on the server shared disk for nearly 3 years were encrypted and all suffixes were changed to.id-XXXX.[Mailbox].phobos. When the boss called at 7:00 a.m., he was ready to admit defeat. We disconnected the network first and checked: ① QNAP snapshot function on NAS was enabled, and the latest snapshot was 10:00 p.m. the previous day-snapshot volume was intact; ② The designer's personal computer's Windows shadow copy virus was not completely deleted, and several files changed during the day were recovered. The final recovery rate was about 90%, only some files modified after 10:00 the previous night were lost, and most of them were replenished through the designer's local cache and email exchanges. The decryption ransom was confiscated throughout (the other party asked for RMB 3000). Afterwards, we helped them change the remote desktop port + strong password + dual factor, and configured daily remote backup.

Financial computer mining Trojan occupied half a year, CPU consumption reduced from 90% to 3%

In June 2026, the financial report of a factory in Shiqi reported that the computer fan was running wildly every day and was stuck at the end of the month. The CPU occupied more than 90% remotely, but there was no large program in the task manager-a typical hidden process mining Trojan. Under the PE environment, it was found that the loader was hidden in the WMI event subscription, and every time it was booted, the mining machine program was pulled from the overseas address and injected into svchost. After cleaning, the entry was checked: This machine has a remote desktop and the password is "123456". The public network can be directly connected-it is from here. After cleaning and strengthening, the CPU returned to 3%. We also helped the factory to check all the other 11 computers, and cleared 2 more with mild poisoning. The lesson is very straightforward: weak password + open public network remote, equal to inserting the door key in the door.

price reference

Test first, quote later, repair later

Item	Reference Price	Notes
Deep kill (PE+ system double layer)	RMB 100–200	Including startup items inventory + reinforcement
Browser Hijacking Repair	RMB 50–80	Home/Plugins/Shortcuts Full Fix
Ransomware emergency response	free diagnosis	Network disconnection guidance + family identification + salvability judgment
Extortion Data Recovery	By Recovery Difficulty	Recovery first and then charge, no charge if unsuccessful
Enterprise computer security inspection	RMB 50/set	From 10, including reinforcement recommendations report
Emergency response to account theft	RMB 80	Trojan removal + encryption guidance

* The above is the reference price, the specific price after inspection/survey shall prevail; batch/enterprise customers can negotiate discounts. Final pricing is subject to the actual on-site inspection.

On the diagnostic fee and parts safety: Hardware diagnosis means disassembly, power-up and instrument-based troubleshooting, which takes engineer time and test equipment, so we charge a basic diagnostic fee for on-site and in-store repair jobs (the amount depends on the item and the device; the reference prices on this page are a starting point only). If you decide not to repair after the diagnosis, or stop midway, you pay only the basic diagnostic fee and no repair labour. Every component and all of your parts are logged and returned exactly as received. We never remove or swap a customer's parts - which is the difference between a proper service provider and a back-street repair shop.

FAQ

About virus detection and network security, we are often asked

Kill soft report poison but the computer is not abnormal, should deal with it?

To check. Some Trojans are quietly stealing data without doing damage. Send us a screenshot of the virus, free to help you determine whether it is true or false positive.

Can I get the data back after paying the ransom?

There is no guarantee. Industry statistics show that about a quarter of victims still cannot recover after payment, and some gangs disappear directly after receiving money. So we give priority to free decryption tools + backup recovery + underlying data rescue route.

Can the reloading system be completely disinfected?

Most of them can, but there are two exceptions: one is a virus that infects UEFI/boot area (rare but exists), and the other is the account password and data that have been leaked-reinstallation cannot solve the "stolen" problem. So be sure to change the password after reinstallation.

How to prevent re-poisoning?

Three things are the most effective: do not install crack software (poisoning path first), remote desktop port change + strong password + double factor, important data 3-2-1 backup (3 copies of 2 media 1 off-site). We can help you configure the backup plan, a configuration of long-term worry.