ScreenShot
| Created | 2021.10.21 18:27 | Machine | s1_win7_x6401 |
| Filename | csrss.exe | ||
| Type | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows | ||
| AI Score |
|
Behavior Score |
|
| ZERO API | file : clean | ||
| VT API (file) | 19 detected (malicious, high confidence, Save, ZemsilF, xm0@aKJqRef, Eldorado, Malcode, gdn30, GenKryptik, FMJE, PWSX, Fareit, score, Static AI, Malicious PE, confidence, susgen) | ||
| md5 | 0929fb7f0a76cd563c16ba1b3303dcb4 | ||
| sha256 | 2447eb9572ac10a9daacaad16bf8f4f922041849c0a570cdeb8724ea9285aac6 | ||
| ssdeep | 6144:36Uqd2GhNEDnLwOYw8fVZjJ/i05YrVr9cJKmi+KwPLMjXX8te2FQ1067:KUi2iNEDnLwOYwYbjdi05aJIa+KUA8Ar | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (31cnts)
| Level | Description |
|---|---|
| danger | Executed a process and injected code into it |
| watch | Allocates execute permission to another process indicative of possible code injection |
| watch | Code injection by writing an executable or DLL to the memory of another process |
| watch | Created a process named as a common system process |
| watch | File has been identified by 19 AntiVirus engines on VirusTotal as malicious |
| watch | Harvests credentials from local email clients |
| watch | Harvests credentials from local FTP client softwares |
| watch | Harvests information related to installed instant messenger clients |
| watch | Manipulates memory of a non-child process indicative of process injection |
| watch | Network communications indicative of possible code injection originated from the process csrss.exe |
| watch | Potential code injection by writing to the memory of another process |
| watch | Putty Files |
| watch | Resumed a suspended thread in a remote process potentially indicative of process injection |
| watch | Used NtSetContextThread to modify a thread in a remote process indicative of process injection |
| notice | Allocates read-write-execute memory (usually to unpack itself) |
| notice | Checks for the Locally Unique Identifier on the system for a suspicious privilege |
| notice | HTTP traffic contains suspicious features which may be indicative of malware related traffic |
| notice | Moves the original executable to a new location |
| notice | One or more potentially interesting buffers were extracted |
| notice | Performs some HTTP requests |
| notice | Potentially malicious URLs were found in the process memory dump |
| notice | Sends data using the HTTP POST Method |
| notice | Steals private information from local Internet browsers |
| notice | Terminates another process |
| notice | The binary likely contains encrypted or compressed data indicative of a packer |
| notice | Yara rule detected in process memory |
| info | Checks amount of memory in system |
| info | Checks if process is being debugged by a debugger |
| info | Collects information to fingerprint the system (MachineGuid |
| info | Queries for the computername |
| info | Tries to locate where the browsers are installed |
Rules (16cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| danger | Win32_PWS_Loki_Zero | Win32 PWS Loki | memory |
| warning | Generic_Malware_Zero | Generic Malware | binaries (upload) |
| watch | Win32_Trojan_PWS_Net_1_Zero | Win32 Trojan PWS .NET Azorult | binaries (upload) |
| notice | Network_DNS | Communications use DNS | memory |
| notice | Network_TCP_Socket | Communications over RAW Socket | memory |
| info | anti_dbg | Checks if being debugged | memory |
| info | DebuggerCheck__GlobalFlags | (no description) | memory |
| info | DebuggerCheck__QueryInfo | (no description) | memory |
| info | DebuggerHiding__Active | (no description) | memory |
| info | DebuggerHiding__Thread | (no description) | memory |
| info | disable_dep | Bypass DEP | memory |
| info | Is_DotNET_EXE | (no description) | binaries (upload) |
| info | IsPE32 | (no description) | binaries (upload) |
| info | PE_Header_Zero | PE File Signature | binaries (upload) |
| info | SEH__vectored | (no description) | memory |
| info | ThreadControl__Context | (no description) | memory |
Suricata ids
ET MALWARE LokiBot User-Agent (Charon/Inferno)
ET MALWARE LokiBot Checkin
ET MALWARE LokiBot Application/Credential Data Exfiltration Detected M1
ET MALWARE LokiBot Application/Credential Data Exfiltration Detected M2
ET MALWARE LokiBot Request for C2 Commands Detected M1
ET MALWARE LokiBot Request for C2 Commands Detected M2
ET MALWARE LokiBot Fake 404 Response
ET MALWARE LokiBot Checkin
ET MALWARE LokiBot Application/Credential Data Exfiltration Detected M1
ET MALWARE LokiBot Application/Credential Data Exfiltration Detected M2
ET MALWARE LokiBot Request for C2 Commands Detected M1
ET MALWARE LokiBot Request for C2 Commands Detected M2
ET MALWARE LokiBot Fake 404 Response
PE API
IAT(Import Address Table) Library
mscoree.dll
0x402000 _CorExeMain
EAT(Export Address Table) is none
mscoree.dll
0x402000 _CorExeMain
EAT(Export Address Table) is none