Elegant sLoad Carries Out Spying, Payload Delivery in BITS

A fresh analysis of the trojan sLoad sheds light on the growing trend of advanced malware “living off the land” of a targeted system and successfully evading detection and carrying out malicious activities. SLoad is a PowerShell downloader type of malware and is known for its impressive...

Multi-stage downloader Trojan sLoad abuses BITS almost exclusively for malicious activities

Many of today’s threats evolve to incorporate as many living-off-the-land techniques as possible into the attack chain. The PowerShell-based downloader Trojan known as sLoad, however, puts all its bets on BITS. Background Intelligent Transfer Service BITS is a component of the Windows operating...

kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members

A vulnerability was found in the fs/inode.c:inodeinitowner function logic of the LInux kernel that allows local users to create files with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group an...

DEBIAN-CVE-2019-19333

In all versions of libyang before 1.0-r5, a stack-based buffer overflow was discovered in the way libyang parses YANG files with a leaf of type "bits". An application that uses libyang to parse untrusted YANG files may be vulnerable to this flaw, which would allow an attacker to cause a denial of...

UBUNTU-CVE-2019-19333

In all versions of libyang before 1.0-r5, a stack-based buffer overflow was discovered in the way libyang parses YANG files with a leaf of type "bits". An application that uses libyang to parse untrusted YANG files may be vulnerable to this flaw, which would allow an attacker to cause a denial of...

SYSTEM token impersonation through NTLM bits authentication on missing WinRM Service.

This module exploit BITS behavior which tries to connect to the local Windows Remote Management server WinRM every times it starts. The module launches a fake WinRM server which listen on port 5985 and triggers BITS. When BITS starts, it tries to authenticate to the Rogue WinRM server, which allo...

Denial Of Service (DoS) Through Integer Overflow

fuse is vulnerable to denial of service DoS through integer overflow. The vulnerability exists in the bitapsearch.js class since patternLen 30 overflows when JS converts values into 32-bits for all bitwise operations, resulting in an application crash...

Titanium: the Platinum group strikes again

Platinum is one of the most technologically advanced APT actors with a traditional focus on the APAC region. During recent analysis we discovered Platinum using a new backdoor that we call Titanium named after a password to one of the self-executable archives. Titanium is the final result of a...

MS08-032: Critical security update of ActiveX kill bits

Resolves a privately reported vulnerability that could allow remote code execution if a user views a specially crafted Web page by using Internet Explorer.INTRODUCTION Microsoft has released security bulletin MS08-032. The security bulletin contains all the relevant information about the security...

edk2: Stack buffer overflow with corrupted BMP

A stack-based buffer overflow was discovered in edk2 when the HII database contains a Bitmap that claims to be 4-bit or 8-bit per pixel, but the palette contains more than 162^4 or 2562^8 colors...

Persistence – BITS Jobs

Windows operating systems contain various utilities which can be used by system administrators to perform various tasks. One of these utilities is the Background Intelligent Transfer Service BITS which can facilitate file transfer capability to web servers HTTP and share folders SMB. Microsoft...

Stealth Falcon Targets Middle East with Windows BITS Feature

The notorious Stealth Falcon cyberespionage group has adopted a new backdoor using the Windows Background Intelligent Transfer Service BITS in its ongoing spyware attacks against journalists, activists and dissidents in the Middle East. According to researchers at ESET, attackers are exploiting t...

New Malware Uses Windows BITS Service to Stealthy Exfiltrate Data

Cybersecurity researchers have discovered a new computer virus associated with the Stealth Falcon state-sponsored cyber espionage group that abuses a built-in component of the Microsoft Windows operating system to stealthily exfiltrate stolen data to attacker-controlled server. Active since 2012,...

Buffer overflow

An issue was discovered in the pamp11 component 0.2.0 and 0.3.0 for OpenSC. If a smart card creates a signature with a length longer than 256 bytes, this triggers a buffer overflow. This may be the case for RSA keys with 4096 bits depending on the signature scheme...

UBUNTU-CVE-2019-15296

An issue was discovered in Freeware Advanced Audio Decoder 2 FAAD2 2.8.8. The faadresetbits function in libfaad/bits.c is affected by a buffer overflow vulnerability. The number of bits to be read is determined by ld-buffersize - words4, cast to uint32. If ld-buffersize - words4 is negative, a...

kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members

A vulnerability was found in the fs/inode.c:inodeinitowner function logic of the LInux kernel that allows local users to create files with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group an...

Schneider Electric Modicon M580 UMAS write system bits and blocks denial-of-service vulnerability

Summary An exploitable denial-of-service vulnerability exists in the UMAS write system bits and blocks functionality of the Schneider Electric Modicon M580 Programmable Automation Controller, firmware version SV2.70. A specially crafted set of UMAS commands can cause the device to enter a...

Why You Should Join Carbon Black at QueryCon 2019

Carbon Black Joining Trail of Bits to Support QueryCon 2019 We are excited to announce that Carbon Black will be joining with Trail of Bits and Kolide to sponsor QueryCon 2019. QueryCon is a conference dedicated to Osquery, an open source tool that allows users to query their devices like a...

IT threat evolution Q1 2019

Targeted attacks and malware campaigns Go Zebrocy Zebrocy was first observed being used as a Sofacy backdoor in 2015. However, the collection of cases where this tool has been used mean that we consider it a subset of activity in its own right. On the basis of this threat actor's past behaviour, ...

UBUNTU-CVE-2019-11472

ReadXWDImage in coders/xwd.c in the XWD image parsing component of ImageMagick 7.0.8-41 Q16 allows attackers to cause a denial-of-service divide-by-zero error by crafting an XWD image file in which the header indicates neither LSB first nor MSB first...