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Tag: Excel

[SANS ISC] XLSB Files: Because Binary is Stealthier Than XML

March 25, 2022 Malware, SANS Internet Storm Center, Security Leave a comment

I published the following diary on isc.sans.edu: “XLSB Files: Because Binary is Stealthier Than XML“: In one of his last diaries, Brad mentioned an Excel sheet named with a .xlsb extension. Now, it was my turn to find one… What’s the magic behind this file extension? “XLS” means that we

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[SANS ISC] Malicious Excel Sheet with a NULL VT Score

August 26, 2020 Malware, SANS Internet Storm Center, Security One comment

I published the following diary on isc.sans.edu: “Malicious Excel Sheet with a NULL VT Score“: Just a quick diary today to demonstrate, once again, that relying only on a classic antivirus solution is not sufficient in 2020. I found a sample that just has a very nice score of 0/57 on VT. Yes, according to

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SANS ISC

[SANS ISC] A Safe Excel Sheet Not So Safe

March 6, 2020 Malware, SANS Internet Storm Center, Security 2 comments

I published the following diary on isc.sans.edu: “A Safe Excel Sheet Not So Safe“: I discovered a nice sample yesterday. This excel sheet was found in a mail flagged as “suspicious” by a security appliance. The recipient asked to release the mail from the quarantine because “it was sent from

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SANS ISC

[SANS ISC] New Campaign Using Old Equation Editor Vulnerability

October 11, 2018 Malware, SANS Internet Storm Center, Security Leave a comment

I published the following diary on isc.sans.edu: “New Campaign Using Old Equation Editor Vulnerability“: Yesterday, I found a phishing sample that looked interesting: From: sales@tjzxchem[.]com To: me Subject: RE: Re: Proforma Invoice INV 075 2018-19 ’08 Reply-To: exports.sonyaceramics@gmail[.]com [Read more]

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SANS ISC

[SANS ISC] More Excel DDE Code Injection

September 28, 2018 Malware, SANS Internet Storm Center, Security Leave a comment

I published the following diary on isc.sans.edu: “More Excel DDE Code Injection“: The “DDE code injection” technique is not brand new. DDE stands for “Dynamic Data Exchange”. It has already been discussed by many security researchers. Just a quick reminder for those who missed it. In Excel, it is possible to

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SANS ISC

[SANS ISC] Malware Distributed via .slk Files

May 22, 2018 Malware, SANS Internet Storm Center, Security One comment

I published the following diary on isc.sans.org: “Malware Distributed via .slk Files“: Attackers are always trying to find new ways to infect computers by luring not only potential victims but also security controls like anti-virus products. Do you know what SYLK files are? SYmbolic LinK files (they use the .slk

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Python/Excel

Automatic Extraction of Data from Excel Sheet

October 24, 2017 Software, Unix 3 comments

Excel sheets are very common files in corporate environments. It’s definitively not a security tool but it’s not rare to find useful information stored in such files. When these data must be processed for threat hunting or to collect IOC’s, it is mandatory to automate, as much as possible, the processing

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Time Machine

RSS NVD Vulnerabilities Feed

  • CVE-2022-20119 (android) May 10, 2022
    In private_handle_t of mali_gralloc_buffer.h, there is a possible information disclosure due to uninitialized data. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-213170715References: N/A
  • CVE-2022-22013 (windows_10, windows_11, windows_7, windows_8.1, windows_server, windows_server_2008, windows_server_2012, windows_server_2016, windows_server_2019) May 10, 2022
    Windows LDAP Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-22012, CVE-2022-22014, CVE-2022-29128, CVE-2022-29129, CVE-2022-29130, CVE-2022-29131, CVE-2022-29137, CVE-2022-29139, CVE-2022-29141.
  • CVE-2022-20120 (android) May 10, 2022
    Product: AndroidVersions: Android kernelAndroid ID: A-203213034References: N/A
  • CVE-2022-20117 (android) May 10, 2022
    In (TBD) of (TBD), there is a possible way to decrypt local data encrypted by the GSC due to improperly used crypto. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-217475903References: N/A
  • CVE-2022-22012 (windows_10, windows_11, windows_7, windows_8.1, windows_server, windows_server_2008, windows_server_2012, windows_server_2016, windows_server_2019) May 10, 2022
    Windows LDAP Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-22013, CVE-2022-22014, CVE-2022-29128, CVE-2022-29129, CVE-2022-29130, CVE-2022-29131, CVE-2022-29137, CVE-2022-29139, CVE-2022-29141.
  • CVE-2022-20121 (android) May 10, 2022
    In getNodeValue of USCCDMPlugin.java, there is a possible disclosure of ICCID due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-212573046References: N/A
  • CVE-2022-22014 (windows_10, windows_11, windows_7, windows_8.1, windows_server, windows_server_2008, windows_server_2012, windows_server_2016, windows_server_2019) May 10, 2022
    Windows LDAP Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-22012, CVE-2022-22013, CVE-2022-29128, CVE-2022-29129, CVE-2022-29130, CVE-2022-29131, CVE-2022-29137, CVE-2022-29139, CVE-2022-29141.
  • CVE-2022-20118 (android) May 10, 2022
    In ion_ioctl and related functions of ion.c, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-205707793References: N/A
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