Ofir Ozer

Malware Researcher for Trusteer IBM

Ofir is a malware researcher for IBM Security's Trusteer's group. He specializes in researching attacks targeting the financial threat landscape. Ofir has a keen interest in Windows Internals, reverse engineering, memory analysis and network anomalys. In his spare time Ofir enjoys football, listening to music, drumming and world traveling.

Banking & Finance October 19, 2020

New Vizom Malware Discovered Targets Brazilian Bank Customers with Remote Overlay Attacks

11 min read - IBM Security Trusteer researchers have discovered a new malware code and active campaign targeting online banking users in Brazil. The malware, coined “Vizom” by the team, uses familiar remote overlay attack tactics to take over user devices in real time,…

Malware August 8, 2019

The Curious Case of a Fileless TrickBot Infection

7 min read - IBM X-Force noted changes in the deployment of the TrickBot Trojan and discovered that the most recent version of the malware is fileless.

Malware July 9, 2019

Taking Over the Overlay: Reconstructing a Brazilian Remote Access Trojan (RAT)

4 min read - IBM X-Force researchers detected, reverse engineered, reconstructed and simulated a Delphi-based Brazilian remote access Trojan.

Malware July 2, 2019

Taking Over the Overlay: What Triggers the AVLay Remote Access Trojan (RAT)?

8 min read - IBM X-Force researchers discovered, reverse engineered and reconstructed AVLay, a remote access Trojan that mixes DLL hijacking with a legitimate executable borrowed from various antivirus programs.

Malware July 1, 2019

Taking Over the Overlay: Reverse Engineering a Brazilian Remote Access Trojan (RAT)

6 min read - X-Force researchers discovered a new remote access Trojan variant that mixes Dynamic Link Library (DLL) hijacking with a legitimate executable borrowed from various antivirus programs.

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Ofir Ozer

New Vizom Malware Discovered Targets Brazilian Bank Customers with Remote Overlay Attacks

The Curious Case of a Fileless TrickBot Infection

Taking Over the Overlay: Reconstructing a Brazilian Remote Access Trojan (RAT)

Taking Over the Overlay: What Triggers the AVLay Remote Access Trojan (RAT)?

Taking Over the Overlay: Reverse Engineering a Brazilian Remote Access Trojan (RAT)

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Topic updates