GSEC · Question #345
What is the SHA1 hash of the Ale /bin/Is?
The correct answer is G. d3a21675a8f 19518d8b8f3cefOf6a21 del da6cc7. SHA1 hashing produces a 40-character hex digest unique to a file's contents, used to verify file integrity on a target system.
Question
What is the SHA1 hash of the Ale /bin/Is?
Exhibit
Options
- Aa895bac9c3<M75d5fa7fb5820b35568cedb5dc23
- B54771b4r<d7tKb4382e670b4465O265206cf09e9
- Ca39bed3C496fC764fc518d3e2d56f7d0f4C625fb
- D93c1 ffbd22ebcad798886fb4aa46fa 357b23d80a
- Eaa40739f465ded2245872b1e4972e33d5bObb1cb
- F494a 192859f 244c69d5bdc46255d b44l9e 7d051 f
- Gd3a21675a8f 19518d8b8f3cefOf6a21 del da6cc7
- H84611 eOb6d59045bOcf 189fca9bc760afdf b7372
- I8873 5f5cb7CCf7b2d 137944ab1 2d 116808310500
- J2cadod58fbd0345c2ced336f9a3ae6f43cf355fi
How the community answered
(23 responses)- C4% (1)
- E4% (1)
- F9% (2)
- G83% (19)
Why each option
SHA1 hashing produces a 40-character hex digest unique to a file's contents, used to verify file integrity on a target system.
This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
Running `sha1sum /bin/ls` on the specific target system yields the hash d3a21675a8f19518d8b8f3cef0f6a21de1da6cc7. SHA1 computes a deterministic 160-bit digest from the binary contents of the file, so the result is unique to the exact version of /bin/ls installed on that system. Any modification to the file would produce a completely different hash value.
This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
Concept tested: SHA1 file integrity verification on Linux binaries
Source: https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/certutil
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