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Dr.Web KATANA
What Dr.Web KATANA is
Dr.Web KATANA is a non-signature antivirus for Windows PCs, intended as additional protection alongside another vendor’s antivirus. It addresses active threats, targeted attacks, and attempts to exploit software vulnerabilities, including zero-day vulnerabilities. KATANA monitors processes in real time using local information and Dr.Web Cloud reputation data to identify malicious behavior. When it detects code exploiting a vulnerability, it ends the attacked process. The product page says protection continues while the PC is offline and that KATANA does not conflict with third-party antivirus software, naming TrendMicro, Symantec, Kaspersky, McAfee, and ESET. It starts operating after installation without required configuration, while settings and application rules can be adjusted. Supported systems range from Windows XP SP2 or later through Windows 11, in 32-bit and 64-bit versions. Minimum requirements include 100 MB RAM and about 150 MB free disk space. A 30-day trial is offered. Plans cover one PC at $9.30 a year or $17.67 a year for two years.
Who it suits
KATANA suits Windows users who want an additional antivirus layer beside another vendor’s protection. It is intended for supported Windows versions and one-PC plans.
What it does well
- Protection against exploit attempts
- Real-time process monitoring
- Works while offline
- Designed to coexist with other antivirus software
- 30-day trial available
What to know first
- Windows-only platform
- One-PC device limit
- No free plan
- Plans start at $9.30 a year
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| 1 PC / 1 year | The price includes VAT · 1 PC | $9.30 a year |
| 1 PC / 2 years | 1 PC/2 years; the price includes VAT · 1 PC | $17.67 a year |
| Dr.Web KATANA (1 PC/2 years) | The price includes VAT · 1 PC · 2 years · Save 11.96 $ | $17.67 a year |
| Dr.Web KATANA (1 PC/1 year) | The price includes VAT · 1 PC · 1 year | $9.30 a year |
As products.drweb.com lists them, read 5 Oct 2026. The maker's own page has the final word.
Verdict
Dr.Web KATANA adds non-signature threat and exploit protection alongside an existing Windows antivirus. Its one-PC plans, Windows requirements, and paid model define the intended setup.
Facts from Dr.Web KATANA's own pages
- Cloud data
- The product page says KATANA’s cloud system can collect information about its operation on PCs, including information about new threats, to help Doctor Web update local protection rules. · products.drweb.com, 11 Oct 2026
- Company history
- Doctor Web’s company history says Igor Danilov established Doctor Web in 2003. · company.drweb.com, 11 Oct 2026
- Compatibility
- Dr.Web says KATANA does not conflict with third-party antivirus software and lists TrendMicro, Symantec, Kaspersky, McAfee, and ESET among compatible products. · products.drweb.com, 11 Oct 2026
- Configuration
- KATANA starts operating effectively after installation without requiring configuration, and users can fine tune its protection settings and application rules. · products.drweb.com, 11 Oct 2026
- Device limit
- 1 · download.drweb.com, 22 Sept 2026
- Exploit protection
- If KATANA detects malicious code attempting to exploit a software vulnerability, it ends the attacked process immediately. · products.drweb.com, 11 Oct 2026
- Founded
- 1992 · products.drweb.com, 28 Sept 2026
- Free plan
- No · download.drweb.com, 22 Sept 2026
- Offline operation
- The product page says KATANA protects a system even when a PC is not connected to the Internet. · products.drweb.com, 11 Oct 2026
- Protection scope
- antivirus · download.drweb.com, 22 Sept 2026
- Purpose
- Dr.Web KATANA is a non-signature antivirus providing preventive protection against active threats, targeted attacks, and infiltration attempts that exploit vulnerabilities, including zero-day vulnerabilities. · products.drweb.com, 11 Oct 2026
- Ransomware protection
- The product detects unwanted file modification and prevents malicious objects from injecting code into other processes, including activity typical of encryption ransomware. · products.drweb.com, 11 Oct 2026
- Paid from
- 9.3 · download.drweb.com, 22 Sept 2026
- Support
- Doctor Web advertises 24/7 technical support and offers users a support request form and ticket creation. · support.drweb.com, 11 Oct 2026
- Supported platforms
- Windows · download.drweb.com, 22 Sept 2026
- Supported Windows versions
- The listed operating systems are Windows 11, 10, 8, 8.1, 7, Vista SP2, and XP SP2 or later, in 32-bit and 64-bit versions. · products.drweb.com, 11 Oct 2026
- System requirements
- The product page lists a minimum of 100 MB RAM and approximately 150 MB of free disk space, plus additional temporary installation space. · products.drweb.com, 11 Oct 2026
- Threat detection
- KATANA monitors system processes in real time and uses local information and Dr.Web Cloud reputation data to detect malicious behavior. · products.drweb.com, 11 Oct 2026
- Trial
- The official download page offers a free trial download for Dr.Web KATANA. · download.drweb.com, 11 Oct 2026
- Use case
- The product is intended as additional protection for Windows PCs running another vendor’s antivirus. · products.drweb.com, 11 Oct 2026
Where Dr.Web KATANA stands on Freedom251
- Anti Malware Software#10 of 16
- Antivirus software#80 of 120