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Unwelcome, Replicating, Evasive, Self-Healing Infrastructure for Elixir πŸ’ͺπŸ›β˜£οΈŽ

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Annelid

biohazard level containment status

Annelid is an evasive, self-healing process that replicates and spreads throughout a cluster of Elixir nodes.

It operates by sending itself back and forth in AST form to other nodes in the cluster, like a contagious quine.

ANNELID IS NOT SUITABLE FOR ANY PURPOSE.

annelid

Infection

  • Annelid can be loaded directly into a cluster by simply infecting a local node, then connecting the node to a remote cluster.

  • When new nodes connect, it spreads itself by transmitting its mRNA AST to the new node for evaluation.

  • It survives and re-infects the cluster during rolling deployments.

  • To prevent simultaneous re-infection by multiple nodes, it sets a global lock and halts if it can't be acquired.

Self Healing

  • When an Annelid process starts, it spawns a free-floating "supervisor" process. The two mutually monitor and restart the other if either is killed.

Evasion

  • Annelid doesn't require inclusion in a project's repository or participation in the normal deploy cycle.

  • There are no modules, it can't be detected by examining the module namespace. It leaves no compiled artifacts on disk.

  • To stop the user from setting the infection lock ahead of time (and thus vaccinating the node), the lock is rotated every second to a calculated value based on a shared secret seed and the current time.

  • Internal timer messages are obfuscated to evade detection via :erlang.trace/3.

Additional sick features

  • Emoji
  • Y Combinators
  • Annoying quotes from Hackers.

ANNELID IS NOT SUITABLE FOR ANY PURPOSE.

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