Online criminals using new trick
Sending IP addresses in hexadecimal format enables the bypassing of spam mail detection mechanisms
Ami Rojkes Dombe
| 23/09/2020
Photo: Bigstock
Online criminals, those that send spam mail, have started to use a new trick – sending IP addresses in hexadecimal format . "The trick relies on a quirk in RFC791 — a standard that describes the Internet Protocol," the zdnet website said.
According to a report by cyber company Trustwave, the group of criminals has adopted hexadecimal IP addresses for its campaigns since the middle of July this year. The goal: to bypass defense mechanisms. "While web browsers are capable of interpreting hexadecimal IP addresses and load the website found on the server, it appears that the trick was enough to help the spam groups evade detection while spewing high volumes of spam messages," zdnet reported.
Sending IP addresses in hexadecimal format enables the bypassing of spam mail detection mechanisms
Photo: Bigstock
Online criminals, those that send spam mail, have started to use a new trick – sending IP addresses in hexadecimal format . "The trick relies on a quirk in RFC791 — a standard that describes the Internet Protocol," the zdnet website said.
According to a report by cyber company Trustwave, the group of criminals has adopted hexadecimal IP addresses for its campaigns since the middle of July this year. The goal: to bypass defense mechanisms. "While web browsers are capable of interpreting hexadecimal IP addresses and load the website found on the server, it appears that the trick was enough to help the spam groups evade detection while spewing high volumes of spam messages," zdnet reported.
