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Russian state-sponsored actor Coldriver uses spear phishing attacks to install the Spica backdoor on victim systems.
The threat actor tracked as TA866 has resurfaced after a nine-month hiatus with a new large-volume phishing campaign to deliver known malware families such as WasabiSeed and Screenshotter. The campaign, observed earlier this month and blocked by Proofpoint on January 11, 2024, involved sending thousands of invoice-themed emails targeting North America bearing decoy PDF files. "The PDFs
## Summary By publishing specially crafted transactions on the Bitcoin blockchain, the SPV maintainer can produce seemingly valid SPV proofs for fraudulent transactions. The issue was originally identified by Least Authority in the tBTC Bridge V2 Security Audit Report as _Issue B: Bitcoin SPV Merkle Proofs Can Be Faked_. A mitigation was believed to have been in place, but this turned out to contain an error, and the issue had not been effectively mitigated. ### Details This is achieved by creating a 64-byte transaction that the fraudulent transaction treats as a node in its merkle proof: The attacker creates the malicious transaction `E` and calculates an unusual but valid transaction `D`, so that the last 32 bytes of `D` are a part of the merkle proof of `E`: ``` D = foo | hash256(E') E' = bar | hash256(E) ``` `foo` and `bar` are arbitrary 32-byte values selected to facilitate this attack. The attacker can then publish `D` and wait for it to be mined. A valid SPV proof for `D` ...
By Deeba Ahmed Bespoke Baits for Big Brains - Mint Sandstorm Deploys New Tactics to Infiltrate Universities. This is a post from HackRead.com Read the original post: Iran’s Mint Sandstorm APT Hits Universities with Hamas-Israel Phishing Scam
The Russia-linked threat actor known as COLDRIVER has been observed evolving its tradecraft to go beyond credential harvesting to deliver its first-ever custom malware written in the Rust programming language. Google's Threat Analysis Group (TAG), which shared details of the latest activity, said the attack chains leverage PDFs as decoy documents to trigger the infection sequence. The lures are
# CL Signatures Issuer Key Correctness Proof lacks of prime strength checking A weakness in the Hyperledger AnonCreds specification that is not mitigated in the Ursa and AnonCreds implementations is that the Issuer does not publish a key correctness proof demonstrating that a generated private key is sufficient to meet the unlinkability guarantees of AnonCreds. A sufficient private key is one in which it's components `p` and `q` are safe primes, such that: - `p` and `q` are both prime numbers - `p` and `q` are not equal - `p` and `q` have the same, sufficiently large, size - For example, using two values both 1024 bits long is sufficient, whereas using one value 2040 bits long and the other 8 bits long is not. The Ursa and AnonCreds CL-Signatures implementations always generate a sufficient private key. A malicious issuer could in theory create a custom CL Signature implementation (derived from the Ursa or AnonCreds CL-Signatures implementations) that uses weakened private keys su...
Gentoo Linux Security Advisory 202401-20 - A vulnerability has been found in QPDF which can lead to a heap-based buffer overflow. Versions greater than or equal to 10.1.0 are affected.
By Deeba Ahmed Attackers Leveraging Windows Vulnerability in Phemedrone Malware Campaign for Enhanced Stealth. This is a post from HackRead.com Read the original post: Windows Defender SmartScreen Vulnerability Exploited with Phemedrone Stealer
By Deeba Ahmed The attacks, potentially linked to Russian APT Sandworm, exploited vulnerabilities in Zyxel firewalls. This is a post from HackRead.com Read the original post: Forescout Report Uncovers New Details in Danish Energy Hack
By Deeba Ahmed From Background Checks to Bedroom Layouts: Data Leak Strips Bare School Security System. This is a post from HackRead.com Read the original post: Texas School Safety Software Data Leak Endangers Student Safety