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‎.gitattributes‎

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# Linguist
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docs/** linguist-documentation=true
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scripts/** linguist-vendored=true
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samples/** linguist-documentation=true
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samples/*.lastlog binary
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samples/*.wtmp binary
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samples/*.utmp binary
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samples/*.btmp binary
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# LF normalization
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*.rs text eol=lf diff=rust
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*.toml text eol=lf
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*.md text eol=lf
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*.yml text eol=lf
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*.yaml text eol=lf
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LICENSE text eol=lf
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.gitignore text eol=lf
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.gitattributes text eol=lf

‎.github/workflows/ci.yml‎

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name: CI
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on:
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push:
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branches: [stable, dev]
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paths:
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- 'src/**'
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- 'Cargo.toml'
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- 'scripts/**'
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pull_request:
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branches: [stable]
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jobs:
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build:
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name: Build & Test
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- uses: dtolnay/rust-toolchain@stable
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- run: cargo build --release
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- run: cargo test
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- name: Verify binary
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run: ./target/release/hidemylogs --version
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generate-samples:
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name: Regenerate samples
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runs-on: ubuntu-latest
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needs: build
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steps:
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- uses: actions/checkout@v4
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- uses: actions/setup-python@v5
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with:
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python-version: "3.12"
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- uses: dtolnay/rust-toolchain@stable
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- name: Check if generate script changed
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id: check
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run: |
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if git diff --name-only HEAD~1 2>/dev/null | grep -q 'scripts/generate_samples.py'; then
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echo "changed=true" >> "$GITHUB_OUTPUT"
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else
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echo "changed=false" >> "$GITHUB_OUTPUT"
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fi
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- name: Generate samples
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if: steps.check.outputs.changed == 'true'
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run: python3 scripts/generate_samples.py
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- name: Build and verify samples parse
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if: steps.check.outputs.changed == 'true'
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run: |
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cargo build --release
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echo "--- utmp ---"
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./target/release/hidemylogs -q print -u samples/compromised.utmp -s u
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echo "--- wtmp ---"
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./target/release/hidemylogs -q print -w samples/compromised.wtmp -s w
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echo "--- btmp ---"
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./target/release/hidemylogs -q print -b samples/compromised.btmp -s b
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echo "--- lastlog ---"
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./target/release/hidemylogs -q print -l samples/compromised.lastlog -s l
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- name: Commit updated samples
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if: steps.check.outputs.changed == 'true' && github.event_name == 'push'
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run: |
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git config user.name "franckferman"
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git config user.email "franckferman@users.noreply.github.com"
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git add samples/
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if git diff --cached --quiet; then
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echo "[*] No changes to samples."
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else
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git commit -m "Regenerate sample files"
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git push
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fi

‎.github/workflows/release.yml‎

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name: Release
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on:
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push:
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tags:
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- "v*"
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permissions:
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contents: write
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jobs:
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build:
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name: Build ${{ matrix.name }}
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runs-on: ubuntu-latest
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strategy:
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matrix:
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include:
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- target: x86_64-unknown-linux-musl
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name: linux-x86_64-musl
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poly: false
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- target: x86_64-unknown-linux-musl
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name: linux-x86_64-musl-poly
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poly: true
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steps:
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- uses: actions/checkout@v4
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- uses: actions/setup-python@v5
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if: matrix.poly
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with:
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python-version: "3.12"
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- uses: dtolnay/rust-toolchain@stable
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with:
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targets: ${{ matrix.target }}
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- name: Install musl tools
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run: sudo apt-get update && sudo apt-get install -y musl-tools
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- name: Polymorphic prep
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if: matrix.poly
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run: python3 scripts/polymorphic.py
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- name: Build
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run: |
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if [ "${{ matrix.poly }}" = "true" ]; then
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RUSTFLAGS="-Ccontrol-flow-guard=no -Cforce-frame-pointers=no" \
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cargo build --profile poly --target ${{ matrix.target }}
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cp target/${{ matrix.target }}/poly/hidemylogs hidemylogs-${{ matrix.name }}
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else
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cargo build --release --target ${{ matrix.target }}
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cp target/${{ matrix.target }}/release/hidemylogs hidemylogs-${{ matrix.name }}
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fi
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- name: Revert sources
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if: matrix.poly
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run: python3 scripts/polymorphic.py --revert
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- name: Checksum
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run: sha256sum hidemylogs-${{ matrix.name }} > hidemylogs-${{ matrix.name }}.sha256
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- name: Upload
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uses: actions/upload-artifact@v4
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with:
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name: hidemylogs-${{ matrix.name }}
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path: |
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hidemylogs-${{ matrix.name }}
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hidemylogs-${{ matrix.name }}.sha256
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release:
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name: Create Release
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needs: build
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runs-on: ubuntu-latest
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steps:
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- uses: actions/download-artifact@v4
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with:
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merge-multiple: true
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- name: Generate checksums
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run: cat *.sha256 > checksums.sha256
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- name: Release
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uses: softprops/action-gh-release@v2
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with:
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name: ${{ github.ref_name }}
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files: |
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hidemylogs-*
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checksums.sha256
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generate_release_notes: true

‎.github/workflows/static.yml‎

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name: Deploy static content to Pages
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on:
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push:
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branches: ["stable"]
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paths:
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- "docs/**"
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workflow_dispatch:
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permissions:
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contents: read
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pages: write
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id-token: write
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concurrency:
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group: "pages"
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cancel-in-progress: false
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jobs:
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deploy:
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environment:
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name: github-pages
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url: ${{ steps.deployment.outputs.page_url }}
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runs-on: ubuntu-latest
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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- name: Setup Pages
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uses: actions/configure-pages@v5
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- name: Upload artifact
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uses: actions/upload-pages-artifact@v3
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with:
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path: './docs'
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- name: Deploy to GitHub Pages
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id: deployment
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uses: actions/deploy-pages@v4

‎.gitignore‎

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# Rust
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/target
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Cargo.lock
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# Editors
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.vscode/
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.idea/
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*.swp
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*.swo
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*~
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# OS
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.DS_Store
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Thumbs.db
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desktop.ini
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$RECYCLE.BIN/
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# Signing
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*.pfx
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*.cer
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*.p12
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*.pem
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*.key
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.poly_backup/

‎Cargo.toml‎

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[package]
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name = "hidemylogs"
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version = "1.0.0"
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edition = "2021"
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authors = ["Franck FERMAN <franckferman@users.noreply.github.com>"]
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description = "Surgical *nix log cleaner - selectively erase access records from lastlog, wtmp, btmp, and utmp while preserving file metadata"
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license = "AGPL-3.0"
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repository = "https://github.com/franckferman/hidemylogs"
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keywords = ["security", "forensics", "red-team", "post-exploitation", "logs"]
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categories = ["command-line-utilities"]
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[dependencies]
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clap = { version = "4", features = ["derive"] }
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chrono = "0.4"
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colored = "2"
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filetime = "0.2"
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[profile.release]
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opt-level = "z"
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lto = true
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strip = true
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panic = "abort"
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# Polymorphic build profile: max obfuscation at compiler level
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[profile.poly]
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inherits = "release"
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opt-level = 3 # O3 instead of Oz: different inlining/vectorization decisions
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lto = "fat" # full cross-crate LTO: more aggressive reordering
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codegen-units = 1 # single codegen unit: deterministic but different layout from release
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strip = "symbols" # strip symbols but keep .rodata (our randomized strings)
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panic = "abort"
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overflow-checks = false # remove overflow checks: changes CFG
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debug-assertions = false

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