excel

2 posts with this tag

Allowing #XLSM and #XLSB files ? Stop it to save your Infra

I understand that a company having legacy systems running always. But, are you permitting XLSM and XLSB filetypes ? #STOP it as fast as possible !! Following images are from a malware packer, possibly related with latest #Zloader and other infections. Credit @DissectMalwareFrom the 2nd screenshot it is clear that XLSM and

a year ago • 1 min read

Malware

[Custom #YARA ] #XLS #macro based #malware downloader using URLDownloadToFileA

Received numbers of sample submission of invoice themed XLS which are not getting detected on VT properly using any reputed Anti Virus engine. There is nothing abnormal happening except it is showing following screen when opened. Pretty unusual - huh ! So, after finding few sample which is successfully evading anti

2 years ago • 7 min read