csrss[.]exe | Triage

Sharing

Copy URL Twitter E-mail

General

Target

csrss.exe
Size

18KB
MD5

ecfd9b55800aebb164a07d9a402dc9dd
SHA1

43e2258320589c44ad6e8099b59adb0d9695fc8d
SHA256

9e63d657b41e13b75aebb261e7f93c0655d52ee82811b37e7470f4119e5b6054
SHA512

22eaf0b51cb7f0efaf2815a2997ef21e4b1e5a9f3a80ec26aced946b0e55ea88ff1df99e88f2449eb668566687aee64824ae419e19deb73ac7b167b21bb92622
SSDEEP

192:wGOblXioAy56HCljUmrW5wnWVP0yttBpEhDBQABJ7dWzZD2X01k9z3AVxwzFFuM7:yXr5zprW5wnWVntWhDBRJLR9zaaFFf

Score

1^/10

Malware Config

Signatures

Files

csrss.exe
.sys windows:10 windows x64 arch:x64

a96fa9912e09e361274ad77f1a4b252c

Code Sign

33:00:00:04:49:80:8e:a7:5d:6e:2d:36:87:00:00:00:00:04:49
Certificate

Issuer

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08/08/2023, 18:38

Not After

07/08/2024, 18:38

Subject

CN=Microsoft Windows Publisher,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:07:76:56:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

19/10/2011, 18:41

Not After

19/10/2026, 18:51

Subject

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

47:23:13:29:42:bc:31:9e:57:19:7d:e0:49:e4:93:4b:26:7a:39:bf:3b:eb:e1:c1:36:83:67:d6:80:11:26:f0
Signer

Actual PE Digest

47:23:13:29:42:bc:31:9e:57:19:7d:e0:49:e4:93:4b:26:7a:39:bf:3b:eb:e1:c1:36:83:67:d6:80:11:26:f0

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

ntdll

NtSetInformationProcess
RtlSetHeapInformation
NtTerminateProcess
RtlSetUnhandledExceptionFilter
RtlLookupFunctionEntry
RtlVirtualUnwind
RtlUnhandledExceptionFilter
RtlUnicodeStringToAnsiString
NtTerminateThread
RtlCaptureContext
RtlFreeAnsiString
RtlAllocateHeap
RtlNormalizeProcessParams
isspace

csrsrv

CsrUnhandledExceptionFilter
CsrServerInitialization

Sections

.text
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 512B - Virtual size: 120B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 28B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

a96fa9912e09e361274ad77f1a4b252c

Code Sign

33:00:00:04:49:80:8e:a7:5d:6e:2d:36:87:00:00:00:00:04:49Certificate

Extended Key Usages

61:07:76:56:00:00:00:00:00:08Certificate

Key Usages

47:23:13:29:42:bc:31:9e:57:19:7d:e0:49:e4:93:4b:26:7a:39:bf:3b:eb:e1:c1:36:83:67:d6:80:11:26:f0Signer

Headers

DLL Characteristics

File Characteristics

Imports

ntdll

csrsrv

Sections

.text Size: 2KB - Virtual size: 1KB

.rdata Size: 2KB - Virtual size: 1KB

.data Size: 512B - Virtual size: 1KB

.pdata Size: 512B - Virtual size: 120B

.rsrc Size: 2KB - Virtual size: 2KB

.reloc Size: 512B - Virtual size: 28B

33:00:00:04:49:80:8e:a7:5d:6e:2d:36:87:00:00:00:00:04:49
Certificate

61:07:76:56:00:00:00:00:00:08
Certificate

47:23:13:29:42:bc:31:9e:57:19:7d:e0:49:e4:93:4b:26:7a:39:bf:3b:eb:e1:c1:36:83:67:d6:80:11:26:f0
Signer

.text
Size: 2KB - Virtual size: 1KB

.rdata
Size: 2KB - Virtual size: 1KB

.data
Size: 512B - Virtual size: 1KB

.pdata
Size: 512B - Virtual size: 120B

.rsrc
Size: 2KB - Virtual size: 2KB

.reloc
Size: 512B - Virtual size: 28B