Pulsar · Cloud file analysis

Know what a file will do before you open it.

Pulsar is our cloud analysis, scanning and detonation system. It takes apart, runs and inspects the documents and scripts your business receives every day, and turns them into one clear verdict.

Launch Pulsar See how it works
  • Free to start
  • No account needed
  • Encrypted upload

Why documents

Documents are where attacks hide.

That is why Pulsar was built around them from day one — and why it scans every other file type too.

  1. Business runs on documents

    Contracts, invoices, résumés, reports: most of the data a company exchanges travels as documents.

  2. The favourite disguise

    Documents are one of the main carriers of malware, spam and phishing today.

  3. A blind spot for antivirus

    Most antivirus engines are weak at detecting malicious documents — our test below shows by how much.

  4. Too many false alarms

    Some engines flag harmless files as threats, blocking work and eroding trust in every alert.

How it works

Three layers of analysis. One verdict.

Every file goes through our own analysis layers, and a multi-engine scan cross-checks the result, so no single miss decides the verdict.

  1. Static analysis

    We dissect the file's structure and hunt for malicious code and suspicious patterns before anything runs.

  2. Dynamic analysis

    The file is detonated in our own controlled sandbox and every action is monitored. This is where even unknown exploits give themselves away.

  3. Visual analysis

    Two systems — one of them AI-powered — look at the document the way a person would, to spot phishing and spam.

  4. One clear verdict

    The findings of every layer and engine come together in a single verdict, shown live while the analysis runs.

Detection test

Where popular antivirus misses, Pulsar catches.

We ran 5,000 publicly available PDF malware samples through Pulsar and three widely used antivirus engines.

94.8% of the PDF malware samples detected by Pulsar

Pulsar4,740 of 5,000 94.8%
Antivirus A4,272 of 5,000 85.4%
Antivirus B3,295 of 5,000 65.9%
Antivirus C352 of 5,000 7.0%
Internal Quasar Infinity test on 5,000 publicly available PDF malware samples. Competing engines are anonymised.

What you can do with it

From one suspicious attachment to every file your company receives.

Check before you open

Drop a suspicious attachment or download into your browser and get a verdict. Nothing to install, no account needed.

Automate with the API

Connect the REST API to your mail flow, upload forms or CI pipelines, and follow each verdict live over WebSocket. A command-line tool is on the way.

Grow at your own pace

Start free and move up to 1,000 or 10,000 files a month as you grow. For larger volumes, ask us about a dedicated or on-premise deployment.

Escalate to an analyst

When a file needs a human eye, our senior analysts reverse-engineer it by hand, under NDA.

Supported files

Built for documents. Ready for everything else.

Detonated in our sandbox today

  • PDFAdobe Acrobat documents
  • VBScript.vbs
  • PowerShell.ps1
  • Images & vector graphicsEPS, AI, SVG, JPEG, PNG, TIFF…

Coming to the sandbox

Coming soon
  • Microsoft OfficeWord, Excel, PowerPoint…
  • HTML & web scriptsJavaScript, PHP, Perl…
  • ExecutablesWindows (PE) and macOS (Mach-O)

Any other file type can be scanned too, with static analysis and the multi-engine scan.

Scan your first file now.

Free to start: 1 file a day without an account, 10 a day once you register. Paid plans start at 1,000 files a month.

Launch Pulsar Talk to our team

Plans & pricing ↗ API documentation ↗ Frequently asked questions