The Computer Emergency Response Team of Ukraine (CERT-UA) has warned of phishing attacks that deploy an information-stealing malware called Jester Stealer on compromised systems.
The mass email campaign carries the subject line “chemical attack” and contains a link to a macro-enabled Microsoft Excel file, opening which leads to computers getting infected with Jester Stealer.
The attack, which requires potential victims to enable macros after opening the document, works by downloading and executing an .EXE file that is retrieved from compromised web resources, CERT-UA detailed.
