LIMERICK businesses and operations around the country are warning of the increase in emails with infected attachments, claiming to be invoices, tricking unwary businesses to click on them and infect their IT systems.
Businesses in Ireland should be on the lookout for brief emails with attachments. ESET Ireland has seen many in the past few weeks, with a subject like “Invoice #39601” or “New Purchase Order 3321176” and the content of the email being “Please find invoice 39601 attached” or “Please find attached PO 3321176 for immediate ordering. Please acknowledge/confirm.”
All the varieties of these obviously aim at getting the user to click on the attachment to the email instinctively, before inspecting the sender or the content. But as these attachments actually carry malware, clicking on them can infect the user’s computer.
ESET’s antimalware software detects the samples carried by these attachments as Java/Adwind or Java/JRat, remotely controlled backdoor trojans that can make victim’s computers vulnerable to ransomware or other malicious payloads.
More than ever, ESET’s warning “Think before you click!” applies, when receiving these emails. Unless the targeted businesses have good security measures in place, that can remove infected attachments automatically, avoiding clicking on them, deleting them, and warning others, is the safest way to prevent infection.
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