Threat Database Trojans Trojan.Kryptik.BSS

Trojan.Kryptik.BSS

By CagedTech in Trojans
Published:
Last updated:

Trojan.Kryptik.BSS is a detection name used to flag a file that behaves like, or is packed in a way consistent with, a generic Trojan horse program. Names containing "Kryptik" are typically applied to threats that have been obfuscated or encrypted by their creators to hide their true purpose and to make analysis and detection more difficult. Because the underlying code is disguised, a file flagged this way could actually belong to several different families of malicious software, ranging from simple nuisance programs to more serious information stealers or downloaders.

Specific technical details about this particular detection, such as the exact payload, file names, or distribution campaigns, are not confirmed in available data. The description below reflects the typical behavior of Trojans in this general category and should be treated as representative rather than a confirmed account of this exact threat.

What This Threat Typically Does

Trojans detected under generic, packed-file labels like this one usually run quietly in the background without any visible interface, so the victim has no obvious indication that anything unusual is happening. Depending on the specific payload hidden inside the obfuscated code, such a Trojan may attempt to download and install additional malicious components, collect information from the infected device, modify system settings, or give a remote attacker some form of access to the compromised computer. Because the code is encrypted or packed, security tools often rely on behavioral patterns rather than exact signatures to catch it, which is why the detection name is broad rather than tied to one specific malware family.

How It Usually Gets Onto Computers

Trojans of this type commonly spread through deceptive means rather than exploiting a single vulnerability. Typical infection paths include malicious email attachments, links in phishing messages, fake software updates, cracked or pirated program installers, bundled downloads from untrustworthy websites, and compromised advertisements. In most cases, the user is tricked into opening or running the file themselves, believing it to be legitimate software, a document, or a media file.

Risks for the User

Because the exact payload can vary, the risks associated with a Kryptik-flagged Trojan can range widely. Potential consequences typically include theft of personal or financial information, unauthorized remote access to the device, installation of further malware, degraded system performance, and exposure of saved passwords or browsing data. Any of these outcomes can lead to financial loss, identity theft, or further compromise of other accounts and devices connected to the same network.

Signs of Infection

  • Unexpected slowdowns, freezes, or crashes
  • Unfamiliar processes running in the background or high resource usage without an obvious cause
  • New or unexplained programs, toolbars, or icons appearing on the system
  • Security software being disabled or unable to update
  • Unusual network activity or data usage
  • Pop-ups, redirects, or altered browser settings

How to Stay Protected

Users can reduce the risk of this type of infection by keeping their operating system and software updated, avoiding downloads from unofficial or pirated sources, being cautious with email attachments and links from unknown senders, and using reputable, up-to-date security software to scan files before opening them. Regularly backing up important data also limits the damage a Trojan infection can cause, and reviewing installed programs and browser extensions periodically can help catch unwanted additions early.

Analysis Report

General information

Family Name: Trojan.Kryptik.BSS
Signature status: No Signature

Known Samples

MD5: f6da884b3e787c5158bac0a18a20ea4e
SHA1: 5477f4815fb148a1415ba1dbec607f01226aab8f
SHA256: 536819FC5A9F61160224707BB9035B3A7F97EE38C03D9F948AFE18FA1BDCEA69
File Size: 3.22 MB, 3221944 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 64-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
  • File is Native application (NOT .NET application)
  • 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 Traits

  • HighEntropy
  • No Version Info
  • x64

Block Information

Total Blocks: 85
Potentially Malicious Blocks: 16
Whitelisted Blocks: 69
Unknown Blocks: 0

Visual Map

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

Similar Families

Show More
  • Trojan.ReverseShell.Gen.FY

Files Modified

File Attributes
c:\programdata\microsoft\windows\perfhost\perfhostsvc.exe Generic Write,Read Attributes
c:\programdata\microsoft\windows\perfhost\perfhostsvc.exe Synchronize,Write Attributes
c:\windows\system32\wbem\wmiperfhost.exe Generic Write,Read Attributes
c:\windows\system32\wbem\wmiperfhost.exe Synchronize,Write Attributes

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcConnectPort
  • ntdll.dll!NtAlpcSetInformation
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateIoCompletion
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateTimer2
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  • ntdll.dll!NtCreateWaitCompletionPacket
  • ntdll.dll!NtCreateWorkerFactory
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDirectoryFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtReadVirtualMemory
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSetTimerEx
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtYieldExecution
  • UNKNOWN
Encryption Used
  • BCryptOpenAlgorithmProvider
  • CryptAcquireContext
Network Winsock2
  • WSAStartup
Other Suspicious
  • AdjustTokenPrivileges