Ioannis Chatzikonstantinou

18 papers B 11Journal 1Unranked 5
YearRankTypeTitle / Venue / Authors
2023 conf
IST
Dimitrios Katsatos, Dimitrios Alexiou, Theodora Kontodina, Ioannis Chatzikonstantinou, Ioannis Kostavelis, Dimitrios Giakoumis, Dimitrios Tzovaras
2022 conf
HCI (7)
Ioannis Chatzikonstantinou, Aristotelis Papaprodromou, Maria Loeck, Rosa Carreton, Sofia Segkouli, Andreas Triantafyllidis, Dimitrios Giakoumis, Konstantinos Votis, Dimitrios Tzovaras
2021
Ioannis Chatzikonstantinou
2020 conf
ICPR Workshops (7)
Georgios Chantziaras, Andreas Triantafyllidis, Aristotelis Papaprodromou, Ioannis Chatzikonstantinou, Dimitrios Giakoumis, Athanasios Tsakiris, Konstantinos Votis, Dimitrios Tzovaras
2020 conf
Living Machines
Ioannis Chatzikonstantinou, Ioannis Kostavelis, Dimitrios Giakoumis, Dimitrios Tzovaras
2019 conf
SmartWorld/SCALCOM/UIC/ATC/CBDCom/IOP/SCI
Ioannis Chatzikonstantinou, Dimitrios Giakoumis, Dimitrios Tzovaras
2017 B conf
CEC
Muhittin Yufka, Berk Ekici, Cemre Cubukcuoglu, Ioannis Chatzikonstantinou, I. Sevil Sariyildiz
2016 J jnl
Algorithms
Cemre Cubukcuoglu, Ioannis Chatzikonstantinou, Mehmet Fatih Tasgetiren, I. Sevil Sariyildiz, Quan-Ke Pan
2016 B conf
CEC
Ioannis Chatzikonstantinou
2016 B conf
CEC
Berk Ekici, Ioannis Chatzikonstantinou, I. Sevil Sariyildiz, Mehmet Fatih Tasgetiren, Quan-Ke Pan
2016 B conf
CEC
Ioannis Chatzikonstantinou, Ebru Bengisu
2016 B conf
CEC
Ayca Kirimtat, Basak Kundakci Koyunbaba, Ioannis Chatzikonstantinou, I. Sevil Sariyildiz, Ponnuthurai Nagaratnam Suganthan
2016 B conf
CEC
Cemre Cubukcuoglu, Ioannis Chatzikonstantinou, Berk Ekici, I. Sevil Sariyildiz, Mehmet Fatih Tasgetiren
2015 B conf
CEC
Ioannis Chatzikonstantinou, I. Sevil Sariyildiz, Michael S. Bittermann
2015 B conf
CEC
Ayca Kirimtat, Ioannis Chatzikonstantinou, I. Sevil Sariyildiz, Ayca Tartar
2015 B conf
CEC
Cemre Ugurlu, Ioannis Chatzikonstantinou, I. Sevil Sariyildiz, Mehmet Fatih Tasgetiren
2015 B conf
CEC
Cemre Ugurlu, Ioannis Chatzikonstantinou, I. Sevil Sariyildiz, Mehmet Fatih Tasgetiren
2015 B conf
CEC
Ioannis Chatzikonstantinou, Berk Ekici, I. Sevil Sariyildiz, Basak Kundakci Koyunbaba
docs/new_database_schema.md
← Index docs/new_database_schema.md markdown

## LLIL function

| Field Name | Field Type | Description |
|-------------|-------------|-------------|
| function_type | string | The inferred type of the analyzed function, determined by the FunctionTypeAnalysis module (e.g., standard, library, thunk). |
| sha256_llil | string | SHA-256 hash computed from the Low-Level Intermediate Language (LLIL) instructions of the function. |
| ssdeep_llil | string | Fuzzy hash (ssdeep) of the LLIL instruction sequence, used for similarity detection. |
| tlsh_llil | string | TLSH (Trend Locality Sensitive Hash) value of the LLIL instructions, used for approximate matching and similarity comparison. |
| instructions_types_llil | list[string] | List of unique LLIL instruction types (e.g., arithmetic, control flow, memory operations). |
| control_flow_count_llil | integer | Number of control flow instructions in the LLIL representation (e.g., branches, jumps, calls). |
| memory_access_pattern_llil | dict | Patterns of memory access operations detected in the LLIL code (e.g., loads, stores, stack operations). |
| register_usage | dict | Summary of register usage, indicating which registers are read and written in the function. |
| total_reg_reads | integer | Total number of register read operations in the LLIL code. |
| total_reg_written | integer | Total number of register write operations in the LLIL code. |
| data_references_count | integer | Number of data references in the LLIL code (e.g., constants, global variables). |
| max_block_size | integer | Size of the largest basic block in the LLIL representation, measured in number of instructions. |
| num_calls | integer | Total number of function call instructions present in the LLIL code. |
| stack_size | integer | Estimated stack size used by the function, inferred from LLIL analysis. |


## CFG level

| Field Name          | Field Type    | Description                                                                                                                               |
|---------------------|---------------|-------------------------------------------------------------------------------------------------------------------------------------------|
| block_id            | integer       | Unique identifier for the basic block within the function (block_instructions + str(block.start) + str(block.end) + str(function.start)). |
| function_address    | integer       | Starting memory address of the parent function containing this block.                                                                     |
| block_start_address | integer       | Starting address of the basic block in memory.                                                                                            |
| block_end_address   | integer       | Ending address of the basic block in memory.                                                                                              |
| block_size          | integer       | Size of the basic block in bytes (computed as end - start).                                                                               |
| instructions_count  | integer       | Number of instructions contained in the basic block.                                                                                      |
| block_instructions  | string        | MD5 hash of the block's instruction sequence, used for integrity or similarity checks.                                                    |
| predecessor_blocks  | list[u64]     | List of addresses or IDs of predecessor blocks in the control flow graph (CFG).                                                           |
| successor_blocks    | list[u64]     | List of addresses or IDs of successor blocks in the CFG.                                                                                  |
| depth               | integer       | Depth level of the block in the control flow graph, starting from the entry block.                                                        |
| position            | integer       | Sequential position or index of the block within the function’s block map.                                                                |
| branch_type         | string        | Type of branch ending the block (e.g., conditional, unconditional, call, return).                                                         |
| block_type          | string        | Classification of the block (e.g., entry, exit, loop header, regular).                                                                    |
| flags               | dict          | Metadata or attributes extracted from the block (e.g., specific behavior or conditions).                                                  |
| dominators          | list[integer] | List of block addresses or IDs that dominate this block in the control flow graph.                                                        |
| post_dominators     | list[integer] | List of block addresses or IDs that post-dominate this block in the control flow graph.                                                   |
 | measures            | list[tuples]  | List of measures to be defined                                                                                                            |

## Disassembly

| Field Name | Field Type | Description |
|-------------|-------------|-------------|
| disassembled_function_hash | string | SHA-256 hash of the disassembled function string, used as a unique identifier. |
| disassembled_function | string | The disassembled function including instruction addresses. |
| disassembled_function_no_addresses | string | The disassembled function without instruction addresses, containing only the instruction mnemonics and operands. |
| disassembled_function_name | string | The name of the analyzed function. |
| disassembled_function_address | integer | The starting memory address of the disassembled function. |
| instructions_count | integer | Total number of instructions within the disassembled function. |
| function_type | string | The inferred type of the function as determined by the FunctionTypeAnalysis module (e.g., standard, library, thunk). |
| instructions_types | list[string] | List of unique instruction types (e.g., arithmetic, logic, control flow, memory). |
| control_flow_count | integer | Number of control flow instructions (e.g., jumps, calls, returns). |
| memory_access_pattern | dict | Patterns of memory access operations detected in the function (e.g., loads, stores, stack operations). |
| register_usage | dict | Summary of register usage, showing which registers are read from or written to. |
| data_references_count | integer | Count of data references made by the function (e.g., global variables or constants). |
| max_block_size | integer | The size of the largest basic block (in number of instructions). |
| num_calls | integer | Total number of function call instructions. |
| stack_size | integer | Estimated stack size used by the function. |

## Decompilation

| Field Name | Field Type | Description |
|-------------|-------------|-------------|
| decompiled_function_hash | string | SHA-256 hash of the decompiled function code, used as a unique identifier. |
| decompiled_function | string | The decompiled function source code in high-level representation. |
| decompiled_function_name | string | The name of the decompiled function. |
| decompiled_function_prototype | string | The function prototype, including return type, name, and parameters. |
| decompiled_function_address | integer | The starting memory address of the decompiled function. |
| function_type | string | The inferred function type from the FunctionTypeAnalysis module (e.g., standard, library, thunk). |
| functions_caller | list[string] | List of functions that call this function (incoming call references). |
| functions_call | list[string] | List of functions called by this function (outgoing call references). |
| flattened_score | float | Score representing the degree of control-flow flattening detected in the function. |
| mba_score | float | Score representing the presence or intensity of mixed boolean arithmetic (MBA) obfuscation patterns. |