Collaborate Disseminate
A piece of malware detects signatures of the sandbox an AV solution tries to use to fingerprint malicious behavior and pretends to be innocent. Once in the real OS environment, it then downloads executable data encoded as image data and de… Continue reading Why don’t computers enforce immutable address spaces for execution?
Suppose there is a file hosting server, and most filenames are strings with mostly CJK characters. Transmitting those characters in HTTP GET requests requires encoding them using UTF-8 (x3 overhead) then URL-encode escaping (another x3 ove… Continue reading Additional verification, sanitization for CJK paths in URLs
I was reading this article which talks about a design to shorten URLs, and in the design section, it says that the given URL can be hashed using a hashing algorithm such as MD5, and then be encoded for display purposes using base64 or simi… Continue reading Why would one need to encode an MD5 hash string? Is it unsafe to display unencoded?
I am trying to figure out if the following string is encoded or if it is encrypted and what algorithm was used in either case. Is there some easy way, to try all sort of different algorithms at once maybe?
This is what I am talking about:
… Continue reading Is the following encoded or encrypted, and how? [duplicate]
For a few days, Fortiguard sends me this alert: Quest.NetVault.Backup.Multipart.Request.Header.Buffer.Overflow
The packets come from the visitor wifi network and they are sent to google.com.
I sent a message to Fortinet support and waiting… Continue reading How to investigate Fortiguard alert for buffer overflow? [closed]
I’ve received this string:
XHSZJMPGUCZONGFA42MLBZUUUDTJRMPGTCQONGFR42MKBZUYWLTJJIHGTCY6NMFA4WKLTZVAWLTJRIHGTCY6NLFA42MLDZU4UDSZJM7GSS36LFFR424LTZVQUDTJRMPGWSQONGFQ42OKBZMUWPTJJMHFSSY6NGFR4WKLDZUYWHSZJMPGSSZ6LFFR42QLFZVEUDSZJNHGTCZOLFFR42ML… Continue reading Help in Decoding This (Probably Base32) [closed]
Which Encryption / Encoding / Cryptography is used to generate this url token?
Note: 1/ Every Token is 16 digits long
2/ No special character is used in here
UEA0FMHdg6xp5Iq1
zqU8E7hq4RMBfuON
qc2YISBp0GlRZVqV
eO3jy907Wd0Pplxj
RjGA0TMnFNAo3… Continue reading What encryption is used in this case? [closed]
The challenge data is:
AkQ2KVX5poU8LcrSpVE3xRfH3rYEYKH9pJ6HH9hipkCaVqagCyPfmiAToxHWCTNtHQ6twaEtoTPGLywKXxYYQS8E1ytgiHCepsAK2fFqRiKh23MS9f9reW7NBE8ef1VKYCSkQQ6uJ5acMAD1w298XGi1sU7UzjZfvKT8UZiSJgm83aeNBbSkyM26oLM2ZQw6PGkJnoE4i4idL5VAKDxnMC6P… Continue reading CyberChef Challenge #21 [closed]
Given a bunch of pairs like these:
My – UUID number 1
secret – UUID number 2
is – UUID number 3
Decode the next word given only the UUID of the message.
I spent yesterday checking out the web for hints to help me understand if and how … Continue reading Decoding UUID4 (version 4 variant 1) given a minimum number of decoded pairs
I have a VueJs app which I bought, It’s working fine, but I recently discovered that whenever I click any button to Submit a form, it sends the form input values AND the following string:
%2BgzOVm2LDG5gAXBMBh7ujDmozZMP16oQRtDm1mzNoVrKhQZaB… Continue reading Unknown Encrypted text when sending requests [closed]