North Korean Kimsuky Hackers Strike Again with Advanced Reconnaissance Malware

The North Korean advanced persistent threat APT group known as Kimsuky has been observed using a piece of custom malware called RandomQuery as part of a reconnaissance and information exfiltration operation. "Lately, Kimsuky has been consistently distributing custom malware as part of...

Tonto Team Uses Anti-Malware File to Launch Attacks on South Korean Institutions

South Korean education, construction, diplomatic, and political institutions are at the receiving end of new attacks perpetrated by a China-aligned threat actor known as the Tonto Team. "Recent cases have revealed that the group is using a file related to anti-malware products to ultimately execu...

Tonto Team Uses Anti-Malware File to Launch Attacks on South Korean Institutions

South Korean education, construction, diplomatic, and political institutions are at the receiving end of new attacks perpetrated by a China-aligned threat actor known as the Tonto Team. "Recent cases have revealed that the group is using a file related to anti-malware products to ultimately execu...

The Bitter Group Targets Chinese Agencies with CHM Malware via Email Attachments

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary The Bitter group targets South Asian government agencies with Office documents and has recently distributed CHM malware to specific Chinese organizations via email attachments. To receive real-time threa...

Bitter APT Group Targets Chinese Energy Sector with New phishing Campaign

Threat Level Actor Report For a detailed threat advisory, download the pdf file here Summary A new cyber espionage campaign targeting the energy sector in China by the South Asian threat group Bitter APT. The campaign involves the use of social engineering tactics through phishing emails that...

CBL Mariner 2.0 Security Update: clamav (CVE-2022-20770)

The version of clamav installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-20770 advisory. - On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier a...

ScarCruft's Evolving Arsenal: Researchers Reveal New Malware Distribution Techniques

The North Korean advanced persistent threat APT actor dubbed ScarCruft is using weaponized Microsoft Compiled HTML Help CHM files to download additional malware onto targeted machines. According to multiple reports from AhnLab Security Emergency response Center ASEC, SEKOIA.IO, and Zscaler, the...

Important: clamav

Issue Overview: A vulnerability in the OOXML parsing module in Clam AntiVirus ClamAV Software version 0.104.1 and LTS version 0.103.4 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improp...

Amazon Linux 2023 : clamav, clamav-data, clamav-devel (ALAS2023-2023-052)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-052 advisory. A vulnerability in the OOXML parsing module in Clam AntiVirus ClamAV Software version 0.104.1 and LTS version 0.103.4 and prior versions could allow an unauthenticated, remote attacker to cause...

K6795: ClamAV CHM Chunk Name Length DoS Vulnerability - CVE-2006-5295

Security Advisory Description Note : Versions that are not listed in this article have not been evaluated for vulnerability to this security advisory. For information about the F5 security policy regarding evaluating older and unsupported versions of F5 products, refer to K4602: Overview of the F...

SUSE CVE-2005-2659

Buffer overflow in the LZX decompression in CHM Lib chmlib 0.35, as used in products such as KchmViewer, has unknown impact and attack vectors...

SUSE CVE-2005-2930

Stack-based buffer overflow in the chmfindinPMGL function in chmlib.c for chmlib before 0.36, as used in products such as KchmViewer, allows user-assisted attackers to execute arbitrary code via a CHM file containing a long element, a different vulnerability than CVE-2005-3318...

SUSE CVE-2005-3318

Buffer overflow in the chmdecompressblock function in CHM lib chmlib before 0.37, as used in products such as KchmViewer, allows attackers to execute arbitrary code, a different vulnerability than CVE-2005-2930...

SUSE CVE-2006-3178

Directory traversal vulnerability in extractchmLib example program in CHM Lib chmlib before 0.38 allows remote attackers to overwrite arbitrary files via a CHM archive containing files with a .. dot dot in their filename...

SUSE CVE-2006-5295

Unspecified vulnerability in ClamAV before 0.88.5 allows remote attackers to cause a denial of service scanning service crash via a crafted Compressed HTML Help CHM file that causes ClamAV to "read an invalid memory location."...

SUSE CVE-2007-1745

The chmdecompressstream function in libclamav/chmunpack.c in Clam AntiVirus ClamAV before 0.90.2 leaks file descriptors, which has unknown impact and attack vectors involving a crafted CHM file, a different vulnerability than CVE-2007-0897. NOTE: some of these details are obtained from third part...

SUSE CVE-2007-1997

Integer signedness error in the 1 cabunstore and 2 cabextract functions in libclamav/cab.c in Clam AntiVirus ClamAV before 0.90.2 allow remote attackers to execute arbitrary code via a crafted CHM file that contains a negative integer, which passes a signed comparison and leads to a stack-based...

SUSE CVE-2008-1389

libclamav/chmunpack.c in the chm-parser in ClamAV before 0.94 allows remote attackers to cause a denial of service application crash via a malformed CHM file, related to an "invalid memory access."...

SUSE CVE-2012-1458

The Microsoft CHM file parser in ClamAV 0.96.4 and Sophos Anti-Virus 4.61.0 allows remote attackers to bypass malware detection via a crafted reset interval in the LZXC header of a CHM file. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the...

SUSE CVE-2015-4467

The chmdinitdecomp function in chmd.c in libmspack before 0.5 does not properly validate the reset interval, which allows remote attackers to cause a denial of service divide-by-zero error and application crash via a crafted CHM file...