
Dolev Taler
Dolev is a Security Researcher within Varonis Threat Labs. He likes bounty hunting, Windows Internals, and finding complicated solutions to simple problems.
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Threat Research
Jan 18, 2024
Outlook Vulnerability Discovery and New Ways to Leak NTLM Hashes
Varonis Threat Labs discovered a new Outlook exploit and three new ways to access NTLM v2 hashed passwords.
Dolev Taler
7 min read
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Threat Research
Jun 07, 2023
Imposter Syndrome: UI Bug in Visual Studio Lets Attackers Impersonate Publishers
Varonis Threat Labs found a bug in Microsoft Visual Studio installer that allows an attacker to impersonate a publisher and issue a malicious extension to compromise a targeted system
Dolev Taler
2 min read
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Threat Research
Oct 25, 2022
The Logging Dead: Two Event Log Vulnerabilities Haunting Windows
You don’t have to use Internet Explorer for its legacy to have left you vulnerable to LogCrusher and OverLog, a pair of Windows vulnerabilities discovered by the Varonis Threat Labs team.
Dolev Taler
4 min read
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Threat Research
Sep 25, 2020
Exploiting BGInfo to Infiltrate a Corporate Network
This post details how a clever attacker can embed a path to a malicious script within a BGInfo config file (.bgi), bypass email security, and execute code remotely.
Dolev Taler
3 min read
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Security Bulletins Threat Research
Jun 17, 2020
Varonis Exposes Global Cyber Campaign: C2 Server Actively Compromising Thousands of Victims
The Varonis Security Research team discovered a global cyber attack campaign leveraging a new strain of the Qbot banking malware. The campaign is actively targeting U.S. corporations but has hit networks...
Dolev Taler
4 min read
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Threat Research
Feb 05, 2020
Varonis Uncovers New Malware Strains and a Mysterious Web Shell During a Monero Crypto Jacking Investigation
The Varonis Security Research team recently investigated an ongoing cryptomining infection that had spread to nearly every device at a mid-size company. Analysis of the collected malware samples revealed a...
Dolev Taler
9 min read
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Security Bulletins Threat Research
Jan 27, 2020
Varonis Uncovers Another New Strain of the Qbot Banking Malware
Varonis has discovered and reverse engineered another new strain of Qbot, a sophisticated, well-known type of malware that collects sensitive data, such as browser cookies, digital certificate information, keystrokes, credentials, and session data from its victims to commit financial fraud.
Dolev Taler
2 min read
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