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TROJ_POWECOD.SMA

December 25, 2017
 Analysis by: Nikko Tamana
 ALIASES:

Generic.PoweCod.A.F4ABF839 (Bitdefender), HEUR:Trojan.Multi.Powecod.a (Kaspersky), TrojanDownloader:Win32/Powsheldow.B (Microsoft)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

19,432 bytes

Memory Resident:

No

Initial Samples Received Date:

18 Dec 2017

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Autostart Technique

The scheduled task executes the malware every:

  • Every day
  • Every 8 hours

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://safe{BLOCKED}s.info/u/?q=cIRw93DTOxpiasvLx_2ghNjg1ZK4mpG18ncTNAiYGxQcfss8LcJCTtltitZQUMidAHjQaViCidEG3sjPHjHuT9sUYo42eZeRmUpgxssa7-WvFiBdQqvaZg-pJhhnkqvlCA_H_eZgC8NZ0iKO00kVzZtebaOsQOLbxsJqNBtU9-i4T7Oi6hbULzXYKRz_1DaYhevg4C1Oi8yEIounqvWDtjmOXO0sneUGUyFwerf8aIFS3ZlAvf7lX-wP5Y6su0lts_Vn5oXvVyBI-Azxhnslo80DvUusf00YbmPPaAVo5CKohctRBXqFMVzWhyDcfufpl082LX3MXPJhSQ8O9wbkqHGgLXr--WdBz4S26ApSAH40jTE69iQQqpsIGbQghCUzol8Nyj_HIzAun8sRImytINySGQxRM3ezOdf-yNFdexv_YrxfjO6TQKt-YQZYmxC8bu9ehNEKql12RuIAyKvVZBm6iavk34&c=dQf49GzzhTbaaDW4ueq4X3X3QU80c9n-22dsFhVnNlOir_WRXPcMZ8HsT7j67OOMrxdr1f2ZlPOS0GHWTuaEs-hTooYuiPCaQn_HMjoOWEuLMsDsaoeFwN1DKoiYHr5bE3GQVacuqIk_vHkn6EPqFNJMIsFALk2l1eLgG-GCs5naRMIkFJvOcrEx_O2Ngw9eg_5BnAszqeAVM0IHs4iCoFXqMOyc9gV6_mDpvxeI_gqoED4N60NGZGH5VDQNllHL3iT56fEfw48-mHvjhpwF5i9ADwXMhL2Msk0Yq9pAeFfEzbxwNq936h3vB2I0fqG3Oo3CF-sSclozHGqI3zXtoWt7bFrSTIlSrIn2OnJVHgouZ5rELGgghc8MqcpEsVUxIUDjnVm4Um7tSjynVwtX08fr6itaX7W4y1ZPcpLscch4EcijQ7vvoX5IZyOYkwmB6C6tY82SuVpm6rxsNZkJaNY63ZpS24sqZjWpkSFMGW7BV6rxjhwYWnOtpq_uUBuVioEv3b1-rszVzny4zFR0ciDqAit73SgKGvbQI9D_xchE781FTtzZZ9SIWucExpuBhKB_BM9M54jIHRO1kYpgqoy9WFSGs-BRL01gTOVAgPrSeRRGxRbhMwi4PinaI7Qv9XcAj6hgCJ1AVKbkPtkeX8aQEBOZ9tNRj-h&r=8444322631647118542

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.850.08

FIRST VSAPI PATTERN DATE:

18 Dec 2017

VSAPI OPR PATTERN File:

13.851.00

VSAPI OPR PATTERN Date:

19 Dec 2017

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product to delete files detected as TROJ_POWECOD.SMA. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:


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