Skip to content
WSTECHNICZNE
TechnicalHow it works under the hood

Web Shell

A script uploaded to a server that allows executing system commands via a regular HTTP request — without SSH or server password.

Why it matters

Gives the attacker as much power as the web server process: access to databases, file modification, email sending, and attacks on other services on the same account.

What's missing without it

Without scanning for such patterns, a web shell survives updates and migrations — as it's just a regular PHP file in a directory no one checks.

When it is used

During incident response audits and periodically on services accepting user-uploaded files.

How we use it

Recognizable code patterns: `eval(base64_decode(...))`, `assert($_POST[...])`, `$_POST["x"]($_POST["y"])`.

Numbers worth knowing

Technical in data

26%

Prognozowany udział w pełni elektrycznych pojazdów (BEV, bez hybryd) w europejskim parku samochodowym do 2035 roku, w porównaniu z 4% w 2025 r.

BCG2035Europe

88%

Meta podaje, że ponad 88% z 137 000 usuniętych reklam oszukańczych w Polsce zostało wykrytych automatycznie przed zgłoszeniem.

Meta09/2026Poland

2 500 000 000 000 USD

Prognozowane światowe wydatki na AI w 2026 roku.

Gartner2026global

Figures from the same field — collected in our market data base.

Related terms