Sazoora.B

By GoldSparrow in Trojans

Threat Scorecard

Popularity Rank: 9,669
Threat Level: 90 % (High)
Infected Computers: 3,391
First Seen: October 24, 2013
Last Seen: November 29, 2025
OS(es) Affected: Windows

Sazoora.B is a new variation of an infostealer Trojan that steals information from a targeted computer system. Once run, Sazoora.B may create a copy of itself as the malevolent file. Sazoora.B may create the registry entry so that it can be launched automatically whenever a computer user boots up Windows. Sazoora.B may then create more registry entries. Sazoora.B may steal information by controlling the particular online banking websites. Sazoora.B may also control the web browsers Mozilla Firefox, Google Chrome and Internet Explorer in an attempt to steal more information. Sazoora.B may create the log file used to store the stolen information. Sazoora.B may then transfer the grabbed data to the particular locations. Sazoora.B is generated to more effectively bypass security programs. Sazoora.B bypasses sandboxes by staying dormant for fifteen minutes after it corrupts a device. When Sazoora.B is launched, it starts communicating with its command and control (C&C) server. Firstly, Sazoora.B assures the C&C is owned by the cybercriminals by asking the server for its authentication itself. This blocks others from hacking the botnet.

SpyHunter Detects & Remove Sazoora.B

File System Details

Sazoora.B may create the following file(s):
# File Name MD5 Detections
1. e40fd42eec5cfd6264fc4f82721c0421cd0ba423aab2fa5358c22c72af26bad9 8aa46d29290d6fafad0a8cea0dc03cfc 14

Analysis Report

General information

Family Name: Trojan.MSIL.Bitcoinstealer
Signature status: No Signature

Known Samples

MD5: de53583c82274b8a20b7f6710a0d3f62
SHA1: f4aca65fac65051fe1c76f81dc0e80dfef9fe69f
SHA256: CE4B1BA8F2A4154031F7C95611A2D0D56A3F760E12DD46538DD73A94765A98E1
File Size: 453.12 KB, 453120 bytes
MD5: 0322cc00c8fed4dc6db4789cb6b83220
SHA1: ec9974777311481883d1072bf8fbf649a96a3ab4
SHA256: 824B448CD0BE433D802355D785B72DAEF2B535CBAE449555373FDAFE94E1251E
File Size: 18.43 KB, 18432 bytes
MD5: 5f6e2fb5f7c039c2c73c2ccfb9c31ab3
SHA1: abaa86f8b52ec58a308decf4985031260ec8e162
SHA256: 301CE69160CED8DAC8057FE0B1AF45E2EBCF165498E0004C3251C452B43A06BC
File Size: 1.01 MB, 1006080 bytes
MD5: 55939c16303757b90aadf2ecfb471527
SHA1: c86ce15583208d640af49a4aaa598bc1c25a28b4
SHA256: 801C87A1D3608872DF5AAA15E09696FA62AC50DAF0979EF47FA7EE1394914411
File Size: 9.39 MB, 9387047 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • File doesn't have security information
  • File is .NET application
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
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  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

Windows PE Version Information

Name Value
Assembly Version
  • 2.0.2.5
  • 1.0.0.0
Company Name Desk Software LTD
File Description Desk Software 2025
File Version
  • 2.0.2.5
  • 1.0.0.0
Internal Name
  • Desk_Software.exe
  • MainV.exe
Legal Copyright DeskSoftware @2025
Original Filename
  • Desk_Software.exe
  • MainV.exe
Product Name Update December
Product Version
  • 2.0.2.5
  • 1.0.0.0

File Traits

  • .NET
  • .sdata
  • big overlay
  • HighEntropy
  • MZ (In Overlay)
  • No Version Info
  • x86

Block Information

Total Blocks: 29
Potentially Malicious Blocks: 2
Whitelisted Blocks: 9
Unknown Blocks: 18

Visual Map

? 0 ? ? ? ? ? ? ? ? ? ? ? 0 0 ? 0 0 0 ? x ? ? 0 0 ? x ? 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • MSIL.AgentTesla.XA
  • MSIL.Inject.LD
  • MSIL.Inject.LDA
  • MSIL.Krypt.MHD
  • MSIL.Krypt.RDC
Show More
  • MSIL.Krypt.TDL
  • MSIL.Krypt.TDXA
  • MSIL.Kryptik.LFB
  • MSIL.Tiny.CU
  • MSIL.XWorm.F

Files Modified

File Attributes
c:\users\user\appdata\local\temp\rcxd292.tmp Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\local\temp\zgokr00.exe Generic Write,Read Attributes
c:\users\user\appdata\local\temp\zgokr00.exe Synchronize,Write Data
c:\users\user\appdata\roaming\dibifu_9\iconextractor.dll Generic Write,Read Attributes
c:\users\user\appdata\roaming\dibifu_9\vshost32.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\ec9974777311481883d1072bf8fbf649a96a3ab4_0000018432.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\ec9974777311481883d1072bf8fbf649a96a3ab4_0000018432.exe Synchronize,Write Attributes

Windows API Usage

Category API
User Data Access
  • GetComputerNameEx
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
  • OpenClipboard
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
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  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcess
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryFullAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationJobObject
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtYieldExecution
  • UNKNOWN

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