McAfee ATR Analyzes Sodinokibi aka REvil Ransomware-as-a-Service – Follow The Money

ARCHIVED STORY McAfee ATR Analyzes Sodinokibi aka REvil Ransomware-as-a-Service – Follow The Money By John Fokker · October 14, 2019 Episode 3: Follow the Money This is the third installment of the McAfee Advanced Threat Research ATR analysis of Sodinokibi and its connections to GandCrab, the mos...

ecdsa Denial of Service vulnerability in signature verification and signature malleability

possible DoS in signature verification and signature malleability Impact Code using VerifyingKey.verify and VerifyingKey.verifydigest may receive exceptions other than the documented BadSignatureError when signatures are malformed. If those other exceptions are not caught, they may lead to progra...

Mariposa Botnet Author, Darkcode Crime Forum Admin Arrested in Germany

A Slovenian man convicted of authoring the destructive and once-prolific Mariposa botnet and running the infamous Darkode cybercrime forum has been arrested in Germany on request from prosecutors in the United States, who've recently re-indicted him on related charges. NiceHash CTO Matjaž "Iserdo...

CVE-2019-15947

In Bitcoin Core 0.18.0, bitcoin-qt stores wallet.dat data unencrypted in memory. Upon a crash, it may dump a core file. If a user were to mishandle a core file, an attacker can reconstruct the user's wallet.dat file, including their private keys, via a grep "6231 0500" command...

CVE-2019-15947

In Bitcoin Core 0.18.0, bitcoin-qt stores wallet.dat data unencrypted in memory. Upon a crash, it may dump a core file. If a user were to mishandle a core file, an attacker can reconstruct the user's wallet.dat file, including their private keys, via a grep "6231 0500" command...

Command injection

In Bitcoin Core 0.18.0, bitcoin-qt stores wallet.dat data unencrypted in memory. Upon a crash, it may dump a core file. If a user were to mishandle a core file, an attacker can reconstruct the user's wallet.dat file, including their private keys, via a grep "6231 0500" command...

CVE-2019-15947

In Bitcoin Core 0.18.0, bitcoin-qt stores wallet.dat data unencrypted in memory. Upon a crash, it may dump a core file. If a user were to mishandle a core file, an attacker can reconstruct the user's wallet.dat file, including their private keys, via a grep "6231 0500" command...

CVE-2019-15947

In Bitcoin Core 0.18.0, bitcoin-qt stores wallet.dat data unencrypted in memory. Upon a crash, it may dump a core file. If a user were to mishandle a core file, an attacker can reconstruct the user's wallet.dat file, including their private keys, via a grep "6231 0500" command...

CVE-2019-15947

Bitcoin Core 0.18.0 stores wallet.dat data unencrypted in memory; on crash a core dump can enable an attacker to reconstruct wallet.dat with private keys by grepping for the sequence 6231 0500. Mitigation: upgrade to Bitcoin Core 0.20.x (e.g., 0.20.1) as advised by Mageia/Gentoo OSS advisories; n...

CVE-2019-15947

Removed by vendor...

$5.3M Ransomware Demand: Massachusetts City Says No Thanks

After a ransomware attack slapped a hefty payout demand of $5.3 million on New Bedford, Mass., the city announced that it is instead opting to pick up the pieces and restore what it can from backups itself. If the city had opted to pay, the payout would have been the largest known ransom payout f...

CVE-2019-15947: Cleartext Storage of Sensitive Information

In Bitcoin Core 0.18.0, bitcoin-qt stores wallet.dat data unencrypted in memory. Upon a crash, it may dump a core file. If a user were to mishandle a core file, an attacker can reconstruct the user's wallet.dat file, including their private keys, via a grep "6231 0500" command...

Spam and phishing in Q2 2019

Quarterly highlights Spam through Google services In the second quarter of 2019, scammers were making active use of cloud-based data storage services such as Google Drive and Google Storage to hide their illegal content. The reasoning behind this is simple: a link from a legitimate domain is seen...

A week in security (August 19 – 25)

Last week on Malwarebytes Labs, we reported on the presence of Magecart on a type of poker software; outlined how the Key Negotiation of Bluetooth KNOB attack works; followed the money on a Bitcoin sextortion campaign; looked back at DEF CON 27; and reported on continuing ransomware attacks on...

The lucrative business of Bitcoin sextortion scams (updated)

Update 2019-09-04: A new wave of sextortion emails purporting to have originated from a group of hackers called ChaosCC—a play on the legitimate European white hat hacking community, Chaos Computer Club CCC—has recently caught the attention of the security world. Below is a sample email we captur...

CB TAU Threat Intelligence Notification: Sodinokibi Ransomware

Sodinokibi otherwise known as Sodin or REvil is a ransomware variant that has recently been observed evolving its delivery techniques, leveraging fake antivirus software and PowerShell droppers. This malware appears to be related to GandCrab and is likely a result of their operation closing up...

A week in security (August 5 – 11)

Last week on Malwarebytes Labs, we explained how brain-machine interface BMI technology could usher in a world of Internet of Thoughts, why having backdoors is problematic, and how we can improve the security of our smart homes. To cap off Hacker Summer Camp week, the Labs team released a special...

iNSYNQ Ransom Attack Began With Phishing Email

A ransomware outbreak that hit QuickBooks cloud hosting firm iNSYNQ in mid-July appears to have started with an email phishing attack that snared an employee working in sales for the company, KrebsOnSecurity has learned. It also looks like the intruders spent roughly ten days rooting around...

Binance KYC Data Leak — Crypto Exchange Sets $290,000 Bounty On Blackmailer

Malta-based cryptocurrency exchange Binance has become a victim of a ransom demand from a scammer who claimed to have hacked the KYC Know Your Customer data of thousands of its customers. The unknown attacker threatened the world's largest cryptocurrency exchange by volume to release KYC...

PT-2019-14488

Name of the Vulnerable Software and Affected Versions Bitcoin Core version 0.18.0 Description The issue concerns the storage of wallet.dat data in memory by bitcoin-qt. When the program crashes, it may create a core file that contains unencrypted wallet data. If this core file is not handled...