DarkPrince_Cloud 666.308: 5,690 Working Logins Attackers Can Use Now

Email, password, and the exact login page it opens: that's the bundle HEROIC analysts found inside DarkPrince_Cloud 666.308, a stealer log uploaded to Telegram and dated 23 Aug 2026. The file holds 5,690 records built from that same three-part pairing, harvested straight from infected devices. Because each password is stored as plaintext and matched to both an email and a URL, the records are ready to use the moment someone opens the file. Scan your email to see if one of those pairings is yours.

Why a Matched Pair Is More Dangerous Than a Password Alone

A password by itself is nearly useless without knowing where to use it. DarkPrince_Cloud 666.308 removes that problem by keeping the email, password, and destination URL together as one unit, so an attacker can move straight from opening the file to logging in, with no research or guessing required.

What's Inside the 666.308 File

• Email addresses: identify the account and double as a phishing target.
• Plaintext passwords: readable immediately, no cracking needed.
• Login URLs: point directly to the site each password unlocks.

The Real-World Fallout

Account takeover is the immediate risk, but the bigger concern is what that account connects to. A hijacked email inbox can reset passwords on other services, and a reused password on a financial site turns a stolen login into direct financial loss.

Where a File Like This Comes From

Stealer malware infects a single device, then quietly copies out everything the browser has saved, pairing each password with the site it belongs to before sending the whole bundle back to the attacker. Nothing about the affected websites was breached directly; the device itself was the point of compromise.

Confirm Your Login Wasn't in the 666.308 Batch

Run a free scan your email against HEROIC's records to check for a match. If your device has been slow, showing pop-ups, or otherwise acting up, treat it as potentially infected: clean or reset it before changing anything, then update passwords starting with email and banking from that clean device. Do this for both your personal and work email addresses, since stealer logs don't distinguish between the two.