Hackers have attacked networks in a number of countries including data centers in Iran where they left the image of a US flag on screens along with a warning: “Don’t mess with our elections”, Reuters reports.
“The attack apparently affected 200,000 router switches across the world in a widespread attack, including 3,500 switches in our country,” Iran’s IT ministry was quoted as saying in a statement on Saturday.
The attack, which hit internet service providers and cut off web access for subscribers, was made possible by a vulnerability in routers from Cisco which had earlier issued a warning and provided a patch that some firms had failed to install over the Iranian new year holiday, according to the report.
A blog published on Thursday by Nick Biasini, a threat researcher at Cisco’s Talos Security Intelligence and Research Group, said: “Several incidents in multiple countries, including some specifically targeting critical infrastructure, have involved the misuse of the Smart Install protocol…
“As a result, we are taking an active stance, and are urging customers, again, of the elevated risk and available remediation paths.”
On Saturday evening, Cisco said those postings were a tool to help clients identify weaknesses and repel a cyber-attack.
Iran’s IT Minister Mohammad Javad Azari-Jahromi posted a picture of a computer screen on Twitter with the image of the US flag and the hackers’ message. He said it was not yet clear who had carried out the attack.
Azari-Jahromi said the attack mainly affected Europe, India and the United States.
“Some 55,000 devices were affected in the United States and 14,000 in China, and Iran’s share of affected devices was 2 percent,” state media quoted the minister as saying.
Hadi Sajadi, deputy head of the state-run Information Technology Organization of Iran, said the attack was neutralized within hours and no data was lost.
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