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Posts Tagged ‘Bitcoin’

Hackers use security camera DVRs for bitcoin Mining

Security researchers at the SANS Institute’s Internet Storm Center has reported that hackers are using DVRs, a device which receive and process images from security camera, as Bitcoin mining rigs. 

The malware is compiled for ARM CPUs, so it’s a specialist nasty. They hackers have created a custom code which can be injected into DVRs. For this hackers will have to brute force or social engineer the passwords. 

In case of security cameras the password is usually easy can be brute forced with in short period. After getting administerative privileges, hackers will install a simple yet nasty malware on the host machine. 

This malware scans for vulnerable Synology Disk Stations as well as attempting tomine BitCoins. “The malware is an ARM binary, indicating that it is targeting devices, not your typical x86 Linux server,” explains SANS Institute researcher Johannes Ullrich in a write-up . 

The malicious code is only scanning for vulnerable Synology Disk Stations and not doing anything on these insecure networks attached storage devices, at least for now.

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Dorian Satoshi Nakamoto: I did not create, invent or otherwise work on Bitcoin

My name is Dorian Satoshi Nakamoto. I am the subject of the Newsweek story on Bitcoin. I am writing this statement to clear my name.I did not create, invent or otherwise work on Bitcoin. I unconditionally deny the Newsweek report.The first time I heard the term “bitcoin” was from my son in mid-February 2014. Read […]

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Bitcoin Exchange Poloniex website got hacked

Here comes another hacking news related to Bitcoin.  Multi crypto currency exchange Poloniex has announced today that their website suffered a cyber attack, leading to Bitcoins being stolen from their company. On BitcoinTalk forum, the company explained how hackers stole the Bitcoins; Placing multiple withdrawls requests at the same time will result in negative balance but still the request is being processed. “Another design flaw is that withdrawals should be queued at every step of the way. This could not have happened if withdrawals requests were processed sequentially instead of simultaneously” the forum post explaining another bug reads. Read More….

For more information go to, http://www., or

The post Bitcoin Exchange Poloniex website got hacked appeared first on National Cyber Security.

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Yahoo malware turned up to TWO MILLION European computers into ‘Bitcoin slaves’

Yahoo malware turned up to TWO MILLION European computers into ‘Bitcoin slaves’ Virus stole computer power to make it easier for criminals to mine Bitcoins There are 21 million Bitcoins hidden across an internet-based network, which are expected to all be found – or ‘mined’ – by 2040 Security breach took place last week affecting
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For more information go to, http://www., or

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Hacker Steals 250,000USD From Bitcoin Exchange BitFloor

It has happened again one Americas most popular bitcoin exchange Bitfloor ( ) has been compromised and close to 250k USD or 25k bitcoins has been stolen from the sites servers in an attack which is turning out to be very embarrassing for the owner. View full post on Cyber War News

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Hackers Break Into Bitcoin Exchange Site Bitcoinica

Bitcoin hasn’t been having a great time lately, there have been a few high profile, large dollar amount hacks of Bitcoin Exchange sites (basically the Bitcoin banks). The latest involved $90,000USD and a high likelihood that the user database was compromised too. It seems like Bitcoin, despite all the hype, …

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Hackers break into bitcoin exchange, steal $90,000 in bitcoins

Bitcoin exchange site Bitcoinica suspended its operations on Friday after hackers managed to steal 18,547 bitcoins — valued at about $90,000 — from its online wallet.
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Bitcoin exchange gets attacked and loses cash…again!

The Bitcoin exchange Bitcoinica took its servers offline after they discovered $90,000 USD worth of bitcoins was stolen from its systems. This is the second time this year Bitcoinica have been targeted.
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BitCoin hacked, More than 18,000 Bitcoins Stolen

BitCoin hacked, More than 18,000 Bitcoins Stolen
Bitcoinica, a Bitcoin exchange started by a 17-year old teenager Zhou Tong, has been shut down for security investigations. It’s believed that at least 18,000 BTC ($90,000 or 68,000 EUR) have been stolen.
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News of the hack was posted this morning by Bitcoinica’s founder, …

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Waledac malware branches out into Bitcoin stealing

A new version of the Waledac malware has been spotted on the Internet, but unlike previous variants, which were mainly used for spamming purposes, this one steals various login credentials and BitCoins, a type of virtual currency.

“The sample was originally detected on Feb 2nd and the first coverage by a major AV was not observed until Feb 13th,” researchers from network security firm Palo Alto Networks announced.

The original Waledac botnet was one of the top spam sources on the Internet until it was shut down by Microsoft in cooperation with other security vendors in March 2010.

However, the new version’s primary goal might no longer be spam, said Wade Williamson, a senior product manager at Palo Alto Networks. That’s because it also steals FTP, POP3 and SMTP user passwords, as well as .dat files for BitCoin wallets.

This is the first time that Palo Alto Networks’ firewall products have spotted Waledac-related activity since the original botnet was shut down two years ago, Williamson said.

The botnet’s two year inactivity was confirmed by antivirus firm BitDefender. “We have closely monitored the web space during international events such as the deaths of political leaders and calamities, moments when the Waledac botnet would run at peak capacity before the takedown, and did not notice any malicious activity on that front,” said BitDefender E-Threats Analyst Bogdan Botezatu.

It’s difficult to determine with certainty if the new version is the creation of the original Waledac authors, but its high similarity to the old variant suggests that it is the work of someone with access to the original source code, Williamson said.

“What it is sure is the fact that the newly added functionalities (email and FTP credentials harvesting) will contribute to an explosive development of the new botnet,” Botezatu said. “FTP accounts will likely be used to accommodate binary copies of the bots, while the email accounts will be used to propagate spam through not-yet-blacklisted mail servers.”

Palo Alto Networks researchers have determined that the new Waledac version is being distributed through web sessions, probably with the help of exploits hosted on compromised websites. According to Botezatu, BitDefender is also investigating this possibility.

“We recommend users to deploy and update a security solution with antispam and antivirus modules,” Botezatu said. “We also advise that users rely on SFTP and SSL when connecting to FTP and mail servers, respectively, in order to minimise the risk of network sniffing.”

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