A week in security (Jun 12 – Jun 18)

Last week was very busy for the Labs, with a look at so-called numeric tech support scams, a visit to the huge Infosec Europe conference, an exploration of Mac Malware as a Service, and a walk through the myths of online bullying. Elsewhere: A huge click-farm is busted Jaff Ransomware is thwarted...

Automated mining Windows kernel information disclosure vulnerability-vulnerability warning-the black bar safety net

2017 6 on patch day, to fix up before we report 5-a kernel information leak vulnerability , the end of the article have details. The year before I demonstrate how to use JS to fuzz the kernel, today we want to bring to you is not dependent on the fuzz, and to automate the mining kernel...

SambaCry exploit analysis-exploit warning-the black bar safety net

“2017 5 May 24, Samba released a 4. 6. 4 version, in the middle fix a serious remote code execution vulnerability, the vulnerability number CVE-2017-7494, the vulnerability affects Samba 3.5.0 after to 4. 6. 4/4. 5. 10/4. 4. 14 in the middle of all versions. SambaCry vulnerability is a scale spre...

Attackers Mining Cryptocurrency Using Exploits for Samba Vulnerability

Unknown attackers are using a recently patched vulnerability in Samba to spread a resource-intensive cryptocurrency mining utility. To date, the operation has netted the attackers just under $6,000 USD, but the number of compromised computers is growing, meaning that a significant number of Samba...

Warning! Hackers Started Using "SambaCry Flaw" to Hack Linux Systems

Remember SambaCry? Two weeks ago we reported about a 7-year-old critical remote code execution vulnerability in Samba networking software re-implementation of SMB networking protocol that allows a remote hacker to take full control of a vulnerable Linux and Unix machines. To know more about the...

SambaCry is coming

Not long ago, news appeared online of a younger sibling for the sensational vulnerability EternalBlue. The story was about a new vulnerability for nix-based systems – EternalRed aka SambaCry. This vulnerability CVE-2017-7494 relates to all versions of Samba, starting from 3.5.0, which was release...

Creator of Bitcoin Mining Schemes faces $12 Million for Ponzi Scam

Every time a new topic trends on the Internet, scammers take advantage of it. You must have heard of Bitcoin and how in recent days it has made some early investors millionaire overnight. Yes, the Bitcoin boom is back, and it's real — a digital currency that has just crossed a new milestone today...

ShadowBrokers Put Price on Monthly Zero Day Leaks

The threat posed by the first wave of ShadowBrokers leaks of Equation Group hacking tools was relatively benign. Some vendors had to scramble to patch zero days in older versions of products, but for the most part, the leaks and accompanying auction were more of a novelty. That obviously changed...

Input validation

DISPUTED The Bitcoin Proof-of-Work algorithm does not consider a certain attack methodology related to 80-byte block headers with a variety of initial 64-byte chunks followed by the same 16-byte chunk, multiple candidate root values ending with the same 4 bytes, and calculations involving sqrt...

CVE-2017-9230

The Bitcoin Proof-of-Work algorithm does not consider a certain attack methodology related to 80-byte block headers with a variety of initial 64-byte chunks followed by the same 16-byte chunk, multiple candidate root values ending with the same 4 bytes, and calculations involving sqrt numbers. Th...

CVE-2017-9230

The Bitcoin Proof-of-Work algorithm does not consider a certain attack methodology related to 80-byte block headers with a variety of initial 64-byte chunks followed by the same 16-byte chunk, multiple candidate root values ending with the same 4 bytes, and calculations involving sqrt numbers. Th...

CVE-2017-9230

CVE-2017-9230 is tied to a Bitcoin Proof-of-Work methodology issue: 80-byte block headers with varying 64-byte chunks and identical 16-byte tail, multiple candidate roots ending with the same 4 bytes, and sqrt-number calculations that can affect difficulty and independence of PoW executions. Conn...

Cisco Coverage for Adylkuzz, Uiwix, and EternalRocks

When the WannaCry attack was launched a little over a week ago, it was one of the first large scale attacks leveraging the data that was leaked by the Shadow Brokers. At the time the real concern was how quickly we would begin to see other threats leverage the same vulnerabilities. Over the past...

Weeks Before WannaCry, Cryptocurrency Mining Botnet Was Using Windows SMB Exploit

A security researcher has just discovered a stealthy cryptocurrency-mining malware that was also using Windows SMB vulnerability at least two weeks before the outbreak of WannaCry ransomware attacks. According to Kafeine, a security researcher at Proofpoint, another group of cyber criminals was...

VulnCheck KEV: CVE-2017-20210

Photo Station 5.4.1 & 5.2.7 include the security fix for the vulnerability related to the XMR mining programs identified by internal research...

Machine learning and the fight against ransomware

Ransomware is now everywhere. The number of emails containing ransomware rose 6,000 percent since 2015, and in 2016, 40 percent of all spam emails had one of these malicious programs hidden within, according to IBM. Other reports highlight the sophistication of ransomware nowadays and it's...

APT10 (MenuPass Group): New Tools, Global Campaign Latest Manifestation of Longstanding Threat

APT10 Background APT10 MenuPass Group is a Chinese cyber espionage group that FireEye has tracked since 2009. They have historically targeted construction and engineering, aerospace, and telecom firms, and governments in the United States, Europe, and Japan. We believe that the targeting of these...

Andrew Macpherson on Intelligence Gathering with Maltego

Ryan Naraine talks with Operations Manager at Paterva Andrew Macpherson who outlines the details of the “Digital Intelligence Gathering using Maltego” course being offered at the SAS 2017 and talks about the benefits for data mining by pen testers, malware analysts and law enforcement agencies...

Zcash Spurs Rash of Malicious Mining Software

Cybercriminals are targeting computers with malicious mining software thanks in part to the appeal of a new cryptocurrency called Zcash that claims to cloak the sender, the recipient and value of transactions. That type of anonymity is not afforded by Bitcoin and is sought after by crooks, said...

Malicious Cryptocurrency Mining tool turns Computers into Zcash Mining Machines

Since its launch over a month ago, new virtual currency Zcash ZEC has become a significant way for cybercrooks to make money by infecting computers with software mining program. Launched in late October, Zcash ZEC is a new cryptocurrency currency that claims to be more anonymous than Bitcoin, as...