Author Archives: BrianKrebs

Phishing Sites Targeting Scammers and Thieves

August 9, 2021
29 Comments

I was preparing to knock off work on a recent Friday evening when a curious and annoying email came in via the contact form on this site:

“Hello I go by the username Nuclear27 on your site Briansclub[.]com,” wrote “Mitch,” confusing me with the proprietor of perhaps the underground’s largest bazaar for stolen credit and identity data. “I made a deposit to my wallet on the site but nothing has shown up yet and I would like to know why.”

Several things stood out in Mitch’s message. For starters, that is not the actual domain for BriansClub. And it’s not hard to see why Mitch got snookered: The real BriansClub site is currently not at the top of search results when one queries that shop name at Google.

Ransomware Gangs and the Name Game Distraction

August 5, 2021
28 Comments

It’s nice when ransomware gangs have their bitcoin stolen, malware servers shut down, or are otherwise forced to disband. We hang on to these occasional victories because history tells us that most ransomware moneymaking collectives don’t go away so much as reinvent themselves under a new name, with new rules, targets and weaponry. Indeed, some of the most destructive and costly ransomware groups are now in their third incarnation over as many years.

Reinvention is a basic survival skill in the cybercrime business. Among the oldest tricks in the book is to fake one’s demise or retirement and invent a new identity. A key goal of such subterfuge is to throw investigators off the scent or to temporarily direct their attention elsewhere.

Cybercriminal syndicates also perform similar disappearing acts whenever it suits them. These organizational reboots are an opportunity for ransomware program leaders to set new ground rules for their members — such as which types of victims aren’t allowed (e.g., hospitals, governments, critical infrastructure), or how much of a ransom payment an affiliate should expect for bringing the group access to a new victim network.

The Life Cycle of a Breached Database

July 29, 2021
55 Comments

Every time there is another data breach, we are asked to change our password at the breached entity. But the reality is that in most cases by the time the victim organization discloses an incident publicly the information has already been harvested many times over by profit-seeking cybercriminals. Here’s a closer look at what typically transpires in the weeks or months before an organization notifies its users about a breached database.

Our continued reliance on passwords for authentication has contributed to one toxic data spill or hack after another. One might even say passwords are the fossil fuels powering most IT modernization: They’re ubiquitous because they are cheap and easy to use, but that means they also come with significant trade-offs — such as polluting the Internet with weaponized data when they’re leaked or stolen en masse.

PlugwalkJoe Does the Perp Walk

July 26, 2021
63 Comments

One day after last summer’s mass-hack of Twitter, KrebsOnSecurity wrote that 22-year-old British citizen Joseph “PlugwalkJoe” O’Connor appeared to have been involved in the incident. When the Justice Department last week announced O’Connor’s arrest and indictment, his alleged role in the Twitter compromise was well covered in the media.

But most of the coverage so far seem to have overlooked the far more sinister criminal charges in the indictment, which involve an underground scene wherein young men turn to extortion, sextortion, SIM swapping, death threats and physical attacks — all in a bid to seize control over highly-prized social media accounts.

Spam Kingpin Peter Levashov Gets Time Served

July 20, 2021
40 Comments

A federal judge in Connecticut today handed down a sentence of time served to spam kingpin Peter “Severa” Levashov, a prolific purveyor of malicious and junk email, and the creator of malware strains that infected millions of Microsoft computers globally. Levashov has been in federal custody since his extradition to the United States and guilty plea in 2018, and was facing up to 12 more years in prison. Instead, he will go free under three years of supervised release and a possible fine.

Don’t Wanna Pay Ransom Gangs? Test Your Backups.

July 19, 2021
71 Comments

Browse the comments on virtually any story about a ransomware attack and you will almost surely encounter the view that the victim organization could have avoided paying their extortionists if only they’d had proper data backups. But the ugly truth is there are many non-obvious reasons why victims end up paying even when they have done nearly everything right from a data backup perspective. 

Microsoft Patch Tuesday, July 2021 Edition

July 13, 2021
49 Comments

Microsoft today released updates to patch at least 116 security holes in its Windows operating systems and related software. A half of dozen of the vulnerabilities addressed today are under active attack, according to Microsoft.

Spike in “Chain Gang” Destructive Attacks on ATMs

July 9, 2021
47 Comments

Last summer, financial institutions throughout Texas started reporting a sudden increase in attacks involving well-orchestrated teams that would show up at night, use stolen trucks and heavy chains to rip Automated Teller Machines (ATMs) out of their foundations, and make off with the cash boxes inside. Now it appears the crime — known variously as “ATM smash-and-grab” and “chain gang” attacks — is rapidly increasing in other states.

Kaseya Left Customer Portal Vulnerable to 2015 Flaw in its Own Software

July 8, 2021
37 Comments

Last week cybercriminals deployed ransomware to 1,500 organizations that provide IT security and technical support to many other companies. The attackers exploited a vulnerability in software from Kaseya, a Miami-based company whose products help system administrators manage large networks remotely. Now it appears Kaseya’s customer service portal was left vulnerable until last week to a data-leaking security flaw that was first identified in the same software six years ago.