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How A Drive-by Download Attack Locked Down Entire City for 4 Days

How A Drive-by Download Attack Locked Down Entire City for 4 Days

Oct 16, 2017
We don't really know the pain and cost of a downtime event unless we are directly touched. Be it a flood, electrical failure, ransomware attack or other broad geographic events; we don't know what it is really like to have to restore IT infrastructure unless we have had to do it ourselves. We look at other people's backup and recovery issues and hope we are smarter or clever enough to keep it from happening to us. Recovery from a downtime event includes inconvenience, extra work, embarrassment and yes, real pain. A ransomware attack is a good example. Unitrends—an American company specialised in backup and business continuity solutions—recently shared with us a real cyber-attack incident happened with one of their customers to describe the required steps they took to recover functionality following a CryptoLocker attack against a US city. Also, how it cost city's Governance team days of production and hundreds of man-hours to recover. The Challenge ...
KRACK Demo: Critical Key Reinstallation Attack Against Widely-Used WPA2 Wi-Fi Protocol

KRACK Demo: Critical Key Reinstallation Attack Against Widely-Used WPA2 Wi-Fi Protocol

Oct 16, 2017
Do you think your wireless network is secure because you're using WPA2 encryption? If yes, think again! Security researchers have discovered several key management vulnerabilities in the core of Wi-Fi Protected Access II (WPA2) protocol that could allow an attacker to hack into your Wi-Fi network and eavesdrop on the Internet communications. WPA2 is a 13-year-old WiFi authentication scheme widely used to secure WiFi connections, but the standard has been compromised, impacting almost all Wi-Fi devices—including in our homes and businesses, along with the networking companies that build them. Dubbed KRACK — Key Reinstallation Attack —the proof-of-concept attack demonstrated by a team of researchers works against all modern protected Wi-Fi networks and can be abused to steal sensitive information like credit card numbers, passwords, chat messages, emails, and photos. Since the weaknesses reside in the Wi-Fi standard itself, and not in the implementations or any individua...
Ukraine Police Warns of New NotPetya-Style Large Scale CyberAttack

Ukraine Police Warns of New NotPetya-Style Large Scale CyberAttack

Oct 14, 2017
Remember NotPetya ? The Ransomware that shut down thousands of businesses, organisations and banks in Ukraine as well as different parts of Europe in June this year. Now, Ukrainian government authorities are once again warning its citizens to brace themselves for next wave of "large-scale" NotPetya-like cyber attack. According to a press release published Thursday by the Secret Service of Ukraine (SBU), the next major cyber attack could take place between October 13 and 17 when Ukraine celebrates Defender of Ukraine Day (in Ukrainian: День захисника України, Den' zakhysnyka Ukrayiny). Authorities warn the cyber attack can once again be conducted through a malicious software update against state government institutions and private companies. The attackers of the NotPetya ransomware also used the same tactic—compromising the update mechanism for Ukrainian financial software provider called MeDoc and swapping in a dodgy update including the NotPetya computer v...
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New Ransomware Not Just Encrypts Your Android But Also Changes PIN Lock

New Ransomware Not Just Encrypts Your Android But Also Changes PIN Lock

Oct 13, 2017
DoubleLocker —as the name suggests, it locks device twice. Security researchers from Slovakia-based security software maker ESET have discovered a new Android ransomware that not just encrypts users' data, but also locks them out of their devices by changing lock screen PIN. On top of that: DoubleLocker is the first-ever ransomware to misuse Android accessibility —a feature that provides users alternative ways to interact with their smartphone devices, and mainly misused by Android banking Trojans to steal banking credentials. "Given its banking malware roots, DoubleLocker may well be turned into what could be called ransom-bankers," said Lukáš Štefanko, the malware researcher at ESET. "Two-stage malware that first tries to wipe your bank or PayPal account and subsequently locks your device and data to request a ransom." Researchers believe DoubleLocker ransomware could be upgraded in future to steal banking credentials as well, other than just ext...
Scam Alert: Your Trusted Friends Can Hack Your Facebook Account

Scam Alert: Your Trusted Friends Can Hack Your Facebook Account

Oct 13, 2017
If you receive a message from any of your Facebook Friends asking for urgent help to recover their Facebook account, since they've added you as one of their ' Trusted Contacts '—just don't blindly believe it. Researchers have detected a new Facebook phishing scam that can even trick an experienced technical user into falling victim to the scam, helping an attacker gain access to your Facebook account. This latest social media scam is abusing "Trusted Contact"—a Facebook account recovery feature that sends secret access codes to a few of your close friends in order to help you regain access to your Facebook account in case you forget your password or lost access to your account. According to a public security alert published by AccessNow, the attack initiates by an already compromised account of one of your friends, asking for urgent help to get back into his/her Facebook account. The attacker explains that you are listed as one of his/her Trusted Conta...
MS Office Built-in Feature Allows Malware Execution Without Macros Enabled

MS Office Built-in Feature Allows Malware Execution Without Macros Enabled

Oct 12, 2017
Since new forms of cybercrime are on the rise, traditional techniques seem to be shifting towards more clandestine that involve the exploitation of standard system tools and protocols, which are not always monitored. Security researchers at Cisco's Talos threat research group have discovered one such attack campaign spreading malware-equipped Microsoft Word documents that perform code execution on the targeted device without requiring Macros enabled or memory corruption. This Macro-less code execution in MSWord technique, described in detail on Monday by a pair of security researchers from Sensepost, Etienne Stalmans and Saif El-Sherei, which leverages a built-in feature of MS Office, called Dynamic Data Exchange (DDE), to perform code execution. Dynamic Data Exchange (DDE) protocol is one of the several methods that Microsoft allows two running applications to share the same data. The protocol can be used by applications for one-time data transfers and for continuous exc...
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