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NDR / By what it is doing / Files encrypted by ransomware

The job · files encrypted across a network

Ransomware recovery, Nottingham. It was in a hurry, and your files come back from what it missed. No ransom.

Encrypting an entire network overnight requires rapid action, and as a result it is hasty. That haste is our raw material: snapshots still stored on the NAS, shadow copies never reached, deleted originals that now sit in unallocated space, and one very large file encrypted only in blocks. Remove the network cable, leave the machines powered on, take photos of all the screens, then call. Jobs arrive at this bench from Nottingham, Derby, Loughborough and Leicester. One drive costs £300 + VAT; servers, RAID sets and NAS boxes start at £500 + VAT, and we quote in writing first. Data is our half of it, and nobody here has any contact with the people behind it.

Only pay if we recover your data, on most jobs Free diagnosis first, then a single price, in writing Parcels come in from Derby, Lincoln and Loughborough

Ask an engineer and the first look is free
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What the symptom points to.

Not yours? Open the fault finder →
What it looks likeWhat usually causes itWhat that means for you
Each filename has a new suffix added: .akira, or a string of characters assigned only to youEncryption is complete. Qilin assigns a separate extension to every business it hitsPhotograph the screen, then unplug the network
akira_readme.txt left in each folderThe note Akira leaves. Others may have filenames such as fn.txt or powerranges.txtTouch none of them
README-RECOVER-.txtQilin again: the note's name matches the extension appliedKeep all of them exactly as found
RECOVER--FILES.txtThe naming BlackCat/ALPHV usesIt is evidence. Nothing gets deleted
A demand sitting where the desktop wallpaper wasAny conversation is meant to happen only via a Tor linkGet a photograph of the full screen
No shadow copy remains, and vssadmin delete shadows is recorded in the logRollback is finished: Windows has nothing to roll back toThat actually makes things easier: it gives us a starting point
How to pack and post it: ring us on 0115 8220606 first for a quote, or use the form. Movement is what finishes a damaged drive, so make sure the package is completely rigid, and insure it for what your data is worth rather than what the disk cost. Send it tracked to the intake lab in Manchester. We pay for it to come back to you. If you want someone to check your packing, ring us before you seal it. The whole method is on the packing and postage guide.

The ransomware groups working UK networks in 2025–26.

QilinThrough 2025 it was mentioned in far more incidents than anyone else, and its own public list of organisations it claims to have encrypted runs beyond a thousand. It does not come with a free key.
AkiraIn November 2025 CISA and the FBI jointly labelled it an active threat. Two builds have been broken: the 2023 version (by Avast), and the Linux/ESXi variant used from late 2023 through 2024 (by a researcher's GPU decryptor published in March 2025). After this Akira changed its encryption, and the current builds have held.
What came after LockBitLockBit was dismantled in February 2024 by an operation the NCA led, and keys were returned to a number of the companies whose files it had encrypted. Smaller players work that ground now.
The free decryptors that existOnly one legitimate catalogue lists free decryption tools: No More Ransom. Akira is on it, with Avast's decryptor, which is worth trying but will only open what the 2023 build encrypted; anything encrypted since cannot be opened with it. Qilin, INC, RansomHub and Medusa do not appear anywhere on it. Anything advertised online as a “universal decryptor” is simply a sales page and nothing else.

From the parcel arriving to the files going home.

Jobs already finished →
01

Booked in the day it arrives, and the first look is on us Free

Your case number is assigned when the item is received. Then an engineer works out what went wrong (no charge). At this point, you receive a basic summary of which parts are recoverable and which are not. You also receive a single written quote for the price of the recovery. Accept the quoted price or turn it down, and there is no obligation to pay anything.

The first look is freeOne fixed figure, in writingNo charge at this point
02

Off the network, then copied as found

The first step, before touching anything infected, is to take it off the network. Next comes a full image of each disk, unallocated space included, because most of the original files deleted can typically still be found there. Nothing is tidied up either: the ransom notes, the wallpaper changes and the demand screen all go into the case file.

A full image taken of each diskUnallocated space taken too
03

Take back what it left behind

It is unusual for ransomware to encrypt data in place. Most strains read the original file, create an encrypted copy right next to it and delete the original, which removes the reference to it and leaves everything else intact. As long as nothing else has taken over that space, those bytes are still there, so carving them out whole is ordinary work here. Every other route gets pushed just as hard: shadow copies the attack missed, snapshots kept on the NAS, large files that were only partly encrypted, and any published decryptor that covers the strain we are dealing with.

The deleted originals carved outPublished keys checked as well
04

New media, and the job written up

Nothing goes back on equipment the incident touched. Media bought specifically for the job carries your files back to you, along with a written account of the work in a form an insurance company or the ICO will accept.

New media, bought in for your jobWritten up for the ICO or an insurer
05

The file list comes before the bill

A complete file list will be provided before any invoicing. Simply say "yes" or "no" to what we found: yes means it is billed, no means it is not, and in most cases you only pay if we recover your data. What we find is posted to you on media purchased specifically for your case, at no additional cost to you. We consider the process complete once you have opened those files yourself on your own computer.

Nothing is charged until you agree the figureNew media, bought in for your jobWe pay to send it home

What comes in most often

  • vssadmin delete shadows /all /quiet: this shows up in most of these jobs, and it deletes the restore points Windows had been keeping. That single entry in a log will usually tell you which script was responsible, and lead you to whichever other computers should also be looked at.
  • Read, encrypt, delete, and the trail survives: unlinking is not erasing, and the original remains where it was until something else needs that space. Normally carving will bring it back completely intact.
  • Haste leaves gaps: under time pressure a strain encrypts a large file only partly, and everything it skipped opens exactly as it did before.
  • The law is travelling in one direction: in July 2025 the Government published a proposal under which no public body and no operator of an essential national service could pay anything. Private companies are widely expected to follow suit. No bets are being placed on looser rules.

Most organisations now refuse. At the end of 2025, Coveware put the share of organisations paying at around 20%, the lowest it had recorded, and its 2026 reports indicated the numbers were even lower. Sophos surveyed organisations early in 2025, publishing that June, and found that 97% of the organisations it asked were able to recover their data. Of those, 49% had paid (48% in its 2026 report), leaving the other half recovering their data without paying. The British Library was asked for roughly £600,000 in 2023. It declined and rebuilt on its own. Paying does not guarantee recovery. There are several paths to recovery and payment is just one of them; however, it is the only path that whoever encrypted your files is interested in you using.

Incident still running? Ring these

  • Report Fraud, which used to be Action Fraud: its cyber-crime line, 0300 123 2040, answers calls out of hours as well, while an incident is still active.
  • NCSC: you can submit a report to the National Cyber Security Centre as well, and its published ransomware guidance is worth working through step by step rather than just looking things up as needed.
  • ICO, inside 72 hours: UK GDPR starts the clock as soon as you are aware that personal records may have been involved, not when the investigation wraps up. The deadline cannot be extended beyond three days.
  • No More Ransom: nomoreransom.org. Run by Europol with the security industry, it provides a catalogue where a genuine free decryptor for your strain will be listed if one exists. Always check here first before believing anyone offering to sell you one.

Data is the part we handle: disks imaged, everything that can be retrieved retrieved, results provided on clean hardware purchased specifically for the purpose, and the whole process documented to meet insurer or ICO expectations. Nothing is charged for the first review, a written fixed price is sent before any chargeable work starts, and in most cases you only pay if we recover your data. No connection is ever established with whoever did this, and there shouldn't be one from you either.

One of these, from start to finish.

NG · NTG-2026-1788ON THE LOG ✓

Ransomware overnight at a builders' merchant in Loughborough

None of the files were encrypted where they lay. The malware opened each file in turn, wrote a jumbled version next to it, then deleted the original, so the real accounts never moved from where they sat. They remained unallocated, waiting to be recovered. Anything missed turned up in a NAS snapshot nobody had checked. No ransom, no reply, and the merchant was issuing invoices again within the week.

Working again inside the same weekNot a thing paid, and nothing handed over

What helps, and what does damage.

Worth doing first

  • Photograph every ransom note and every screen displaying a demand for payment
  • Disconnect the network cable, not the power lead: infected systems stay powered on
  • Every log kept. Nothing deleted
  • Report Fraud first, then the NCSC; give the ICO its 72 hours' notice where personal records are involved

What makes it harder

  • Making contact with those behind it, negotiating, or paying
  • Restoring a copy to a machine that is still infected
  • Believing anyone who is selling a 'universal decryptor'
  • Reactivating an encrypted NAS before it has been photographed

Answers before you spend anything.

Is paying the quicker way out?

No. We do not broker payments for anyone. Three reasons, most important first: there is no obligation on the other side to hand over a working key, so what arrives may be partial or broken outright; your money funds more encryption attacks; and the ICO has been explicit that payment counts for nothing when it assesses what happened. Police guidance says the same.

What proportion of the files return?

A good deal of it, frequently: some files entire, others only in part. There are five routes and many jobs use two or more of them. A published free tool, if one genuinely covers the strain. Files deleted rather than erased, sitting in place where the file system left them. Snapshots stored on the NAS. Shadow copies the run was unable to reach. And most straightforward of all, a copy already in your own possession.

Is a free decryptor published for this one?

Start with No More Ransom, which Europol is behind and which only lists tools proven to work. Currently there are no published tools for Qilin, INC, RansomHub or Medusa, and none for the current builds of LockBit or Akira. If someone offers you a “universal key” for any of these strains, you are essentially paying for recovery labour under another name.

Who do we have to notify?

Up to three bodies, depending on the case. Cyber crime goes to Report Fraud (Action Fraud renamed) on 0300 123 2040. Businesses should also report it to the NCSC. Where personal data sat among the encrypted files, the ICO needs to be told within 72 hours under UK GDPR, with the time starting from the moment you realise.

Switched off, a drive cannot get any worse.

The look costs nothing. It gives you a file listing of what opened and what did not, along with the cost of finishing the job, in writing, before anything chargeable begins. In most cases you only pay if we recover your data. Do not switch the drive on until you have that listing.

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