An adversary may compress or encrypt data that is collected prior to exfiltration using 3rd party libraries. Many libraries exist that can archive data, including Python rarfile,1 libzip,2 and zlib.3 Most libraries include functionality to encrypt and/or compress data. Some archival libraries are preinstalled on systems, such as bzip2 on macOS and Linux, and zip on Windows. Note that the libraries are different from the utilities. The libraries can be linked against when compiling, while the utilities require spawning a subshell, or a similar execution mechanism.
- PyPI RAR
- libzip
- Zlib Github
使用该技术的组织
| 组织 | 名称 | 国家 |
|---|---|---|
| grp_g0032 | Lazarus Group | DPRK |
| grp_g1057 | ShinyHunters | — |
| grp_g0027 | Threat Group-3390 | China |
断言
尚无指向该技术的公开断言。
记录自动入库·未人工复核；置信度与有效期按引用读取。