78 Posts

Limor Kessem

Executive Security Advisor, IBM

Limor Kessem is one of the top cyber intelligence experts at IBM Security. She is a seasoned security advocate, public speaker, and a regular blogger on the cutting-edge IBM Security Intelligence blog. Limor comes to IBM from organizations like RSA Security, where she spent 5 years as part of the RSA research labs and drove the FraudAction blog on RSA's Speaking of Security. She also served as the Marketing Director of Big Data analytics startup ThetaRay, where she created the company's cybersecurity thought leadership. Limor is considered an authority on emerging cybercrime threats. She participated as a highly appreciated speaker on live InfraGard New York webcasts (an FBI collaboration), spoke in RSA events worldwide, conducts live webinars on all things fraud and cybercrime, and writes a large variety of threat intelligence  publications. With her unique position at the intersection of multiple research teams at IBM, and her fingers on the pulse of current day threats, Limor covers the full spectrum of trends affecting consumers, corporations, and the industry as a whole. On the social side, Limor tweets security items as @iCyberFighter and is an avid Brazilian Jiu Jitsu fighter.

Written By Limor Kessem

Unwrapping the Mystery: Did a Big, Slimy Internet Worm Make Hundreds of Organizations WannaCry?

IBM X-Force revealed that WannaCry spread to its targets like a computer worm. But unlike a classic worm, it carried a malicious payload of ransomware.

GootKit Malvertising Brings Redirection Attacks to Italian Banks

The cybergang behind GootKit followed up its recent U.K. activity by launching redirection attacks at Italian banking services.

WannaCry Ransomware Spreads Across the Globe, Makes Organizations Wanna Cry About Microsoft Vulnerability

The operators of malware known as WannaCry/WanaCrypt0r 2.0 are believed to have caused the biggest ransomware attack ever recorded.

GootKit Launches Redirection Attacks in the UK

X-Force researchers discovered that the cybergang behind the GootKit banking Trojan recently began launching redirection attacks in the U.K.

Neverquest Gang Takes Leave — Is It the End of the Quest?

IBM X-Force researchers recently observed a massive drop in Neverquest malware campaigns. Is it the end of an era for this Trojan?

TrickBot Is Hand-Picking Private Banks for Targets — With Redirection Attacks in Tow!

According to IBM X-Force Research, the operators of the infamous TrickBot Trojan have been hand-picking private banks to target with redirection attacks.

The Necurs Botnet: A Pandora’s Box of Malicious Spam

Since its initial launch five years ago, the Necurs botnet has quickly ascended the cybercriminal ranks. Today, it controls more than 6 million endpoints.

Cybercriminals Riding Tax Filing Tides: Tax Fraud Season in Effect

IBM X-Force researchers discovered that the volume of spam email campaigns carrying tax fraud scams rises sharply during the months surrounding tax season.

Commercial Malware Makes a Comeback in 2016

According to the IBM X-Force Threat Intelligence Index for 2017, commercial malware made a notable comeback in 2016 and remains a top threat in 2017.

The NukeBot Trojan, a Bruised Ego and a Surprising Source Code Leak

After being spurned by his cybercriminal peers on underground forums, the creator of NukeBot apparently leaked the banking Trojan's source code.

Co-Written By Limor Kessem

Brazilian Malware Client Maximus: Maximizing the Mayhem

A new, upgraded version of remote access malware Client Maximus points to the growing sophistication of cybercriminals in Brazil.

QakBot Banking Trojan Causes Massive Active Directory Lockouts

IBM X-Force attributed a recent wave of malware-induced Active Directory (AD) lockouts across several IR engagements to the operators of the QakBot Trojan.

Relying on Data to Mitigate the Risk of WordPress Website Hijacking

To protect their WordPress sites from scammers, administrators must proactively patch and monitor their installations to weed out unwanted content.

Brazilian Malware Never Sleeps: Meet EmbusteBot

IBM Research — Haifa Labs detected yet another malware campaign, dubbed EmbusteBot, designed to target dozens of financial institutions in Brazil.

GootKit Developers Dress It Up With Web Traffic Proxy

X-Force researchers revealed the cybergang behind Gootkit had upgraded the banking Trojan with new network interception and certificate bypass methods.

The Full Shamoon: How the Devastating Malware Was Inserted Into Networks

X-Force IRIS researchers found that the Shamoon malware operators relied on weaponized documents that leveraged PowerShell to infiltrate targeted networks.

Anatomy of an hVNC Attack

Cybercriminals who rely on remote control tactics to commit financial fraud may use hidden virtual network computing (hVNC) modules to cover their tracks.

Client Maximus: New Remote Overlay Malware Highlights Rising Malcode Sophistication in Brazil

IBM X-Force researchers discovered a new malware called Client Maximus that contains advanced code written specifically to attack banks in Brazil.

Two Heads Are Better Than One: Going Under the Hood to Analyze GozNym

IBM X-Force researchers recognized that the GozNym banking malware leverages features from two types of malware to make it double the threat.

Gozi Banking Trojan Upgrades Build to Inject Into Windows 10 Edge Browser

The developers of the Gozi banking Trojan have built some improvements into the malware that now allow it to attack Windows 10 operating systems.

Dyre Summer Renovation: Randomized Config File Names Keep Antivirus Engines Guessing

Developers of the Dyre malware are keeping a close eye on security, making several changes to the file configuration to avoid detection.

Tsukuba: Banking Trojan Phishing in Japanese Waters

IBM Security Trusteer researchers recently discovered a new financial malware dubbed Tsukuba, which targets Japanese online banking users.