HEROIC Analysts Flag SnowCloud Leak of 1,575,422 Records

HEROIC analysts flagged a significantly larger dump this time around: a file named SNOWCLOUD-VALIDSULP-FROMTRAFFIC.txt_part_12, uploaded to Telegram and containing a staggering 1,575,422 individual records. The filename hints at its origin, a validated combolist pulled directly from live malware traffic.

Why This Is Dangerous

When researchers say a log was pulled straight "from traffic," it means the credentials were captured in real time as victims actually logged into their accounts, rather than scraped from old saved passwords. That makes the data especially fresh and, in many cases, still valid. With over a million and a half records involved, the sheer scale means attackers have plenty of material to work through.

What Was Exposed

• Email addresses tied to active accounts
• Plaintext passwords with no encryption applied
• URLs revealing exactly which services were targeted
• 1,575,422 records total, making this one of the larger stealer logs recently seen

Why This Matters

A dump this large doesn't stay confined to a small group of unlucky people, it touches an enormous cross section of internet users who may never even know their information was caught up in it. HEROIC analysts note that files labeled "valid ULP" tend to circulate faster than most, since buyers know the credentials have definately already been tested and confirmed working.

How Stealer Logs Work

Infostealer malware operates by embedding itself on a victim's device and monitoring activity, capturing usernames and passwords the instant they're typed into a login form. Some variants go a step further and intercept network traffic directly, wich is likely how this particular file earned the "fromtraffic" label in its name. The stolen data is then split into parts, like part 12 seen here, and distributed across dark web channels.

Check If You Are Affected

With over 1.5 million records in play, the odds that your email is included are higher than usual. HEROIC's free breach scanner checks your information against a database of more than 400 billion leaked records, so you can quickly find out if you're one of the accounts caught up in this leak.