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    # 4/2 ## 4/5 > 下次大咪 - model 適合哪一類,所以著重在哪個 scope 上 - variation 變形有哪些類型,要變什麼 tool, parameter, behavior, interpreter ![image](https://hackmd.io/_uploads/HJGxJEZgA.png) ![截圖 2024-04-08 下午4.47.46](https://hackmd.io/_uploads/ByFHyNZgR.png) - code generation 跟 variation 到底在整個流程中占哪個 part ### 建泓 > 善新希望看到 STIX 目前到底能怎麼呈現 IoB 的行為跟攻擊串鏈 - E.g., - A create B - C access D - ... - campaign group TTP - group habit - sysmon pattern > 希望大家一起去了解 STIX 畢竟每個人都會需要用到 ## 4/3 > 將 scope 畫在 lockbit 3.0 的其中一個 compaign 並納入它其他最近的情境 > 訂好 scope 後可能會比較好產 > 建宏找找一兩個 STIX 的 use case,如何去描述攻擊行為 IoB,如果要變形的話要去改甚麼欄位 > 用 STIX 將 NLP 的變因降到最低 ### 俊逸 > 變化的方式 - 不交給 model 發想而是給予他變的方向 (STIX),但要先看看 STIX 有甚麼 > Reward model 是個很新的嘗試 ### 映潔 - QA Llama 效果比 gemma 好 - 貢獻:在前面如何找出重要的 information - 先 NLP 再看要不要 STIX > 下次介紹流程,結構性的說一下,不要直接跳進去說細節 ### 建宏 - model 特性 - 在 variation 上會很好 > model 是從頭 train 的,所以較不會有黑盒子的問題 ### 冠儒 > Binary mutation 並不是目前迫切需要的,而且已經做過很久了,無法 > 把變拉出來變成是我們的 know how,而不是問得很好讓他產的好 > 把 model 當成查字典用的 > 思考變的方法 > code 產生的貢獻是 model 的,但如何變的方法可以是我們的 > X: 是要想辦法把codellama跟RAG變得不那麼黑盒子嗎 > 目前就只是透過更改prompt去找到他最好的output,但這很不可控,也不知道為甚麼這樣改就能work → 要去改善這點 - train 一個 => 資料集 - fine-tune 一個 => 但還是有點黑 ## 整體架構 - Dataset - Dataset 夠嗎 - Training 跟 testing 都會需要 - 如果每個人都需要自己的 dataset 在整張圖上面不太符合邏輯 > 不要用「我」 - 不要因為我的研究想做而做 而是要客觀的考慮各方的需求 > 現在沒有 category 或是 divide 的概念 > 如果一個地方還不清楚:定出時間先後順序,至少未來不會漏掉 > 不只一個地方要深,你還要整個故事都要通 ~~(絕對不是叫你包山包海)~~ > 可以進行假設,但要先把整個 loop 說清楚,再去說 component 的假設,才不會跑偏 > 要以主題來 divide 而不是依照人 divide - 我們應該先把所有可以用的都寫出來在說我們只做 command 跟 code 嗎 E.g. Threat Generator 應該做哪些事 - Phishing - 各種的 code (python, c/c++, java, ...) - Script - GUI (e.g., RDP) - Command - devide and conque是根據邏輯來切再來分工 而不是因為各自想負責什麼而切 > 我們能否用 Lockbit 3.0 串起整個 loop --- ## Optimization of Command Generation > 有沒有辦法描述 codellama 程式產生的過程 (黑盒子) - 不同 model 的結果會相同嗎 - 不同次的結果會相同嗎 > 管子看豹子 - Command 是豹子中的其中一塊 ---- 管子這個都能接住,厲害厲害 ## Persistence Tactic for GemmaGAN - 做得比現在的研究好 in some aspect 就可以當貢獻了 > imblanced dataset > overfitting --- ## improve performance by re-pretrained encoder & decoder - 提到 method 還是需要概要說明 (就算前面的人已經提過) - 避免 random thought 的流程 --- classifier, accuracy 的發音練過再來 請用肯定句 不要雙重否定 (沒有很好解決) 提到耀升就會有debuff 開始切割 不能提名字的男人 ![image](https://hackmd.io/_uploads/SySIPQFJA.png) https://www.sci-hub.se/ -> 很棒的地方 可以不用付錢 :) ## Code(C++) Generation and Variation via LLM for LSASS Memory Dumping > why code generation? > why choice lsass memory dumping? > 切小塊各自 divide & conquer 最終可能會兜不起來 > 怎麼選題要再思考 - 感覺要想出如何選擇的邏輯真的好難QQ --- 剛剛都聚焦在方法論 現在又繞回來整個 scope 了 debuff 我想換實驗室了Q 90度角問你 45度角問你 已經繞到其自他坐標系了 ![image](https://hackmd.io/_uploads/r1wr9XtkR.png) ## User behavior reversing and CTI generation based on detection result > 口頭上在不省略重點的情況下 盡可能簡要的說明 - 要幹嘛 - 進度 - 後續要做甚麼 > 什麼是 "關聯"? - 給具體定義 + 例子說明 - 感覺下週可以報這個,關聯的性質感覺會是老師有興趣的地方 關聯 XVR 不是就有做好了嗎? - 只用 parent-child 可能 too weak - 如果用開機來看所有 process 的 root 不會是同一個嗎 - 都是 OS - tree / graph 太大了 (盡量避免) - 能不能只用 piece of info 做關聯? --- 字好多 這次的字真的太多了XD ![image](https://hackmd.io/_uploads/SyJko7YJC.png)

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