Hi You all.
So, strange but true, My Beloved's system (which I put together less than a year ago) was running an Ewido scan, minding it's own biz, when suddenly, the BSOD appeared. No problem I thought, at most we'll do a repair on XP and she'll be up and running again. No no, instead, we find that the 250 Maxtor has suddenly lost it's NTFS format, and is read as RAW (sounds painful). Being brilliant as well as beautiful, (big score on points there) she borrows a Linux disk and is able to retrieve most of her files in that manner. Now, HOW DID THIS HAPPEN? The only abnormality prior to the incident was AVG showed positive for 14 viruses which according to Housecall weren't there. On further investigation there aren't any virus' known by the names AVG gave us. Apparently AVG was testing positive for these mystery viruses for a week prior but never sounded the warning bells. The viruses were in files such as Nero.exe, or surething.exe, etc. Which are all legitimate files. So, before this qualifies for a novel, have we slept through a major attack warning or missed some new outbreak report? I'm out of adjectives and anything even remotely humorous to add. I would appreciate any candlepower directed on this situation. If we are to ensure it not occurring again, gotta know what "it" is.
Thanks you all.
Harvester3

Dani AI

Generated

Good immediate triage and a practical recovery checklist tied to the thread: an NTFS volume that suddenly appears as RAW is a metadata/structure problem (MBR/partition table/MFT) or a failing drive — not something to keep writing to. did the right thing by switching to a Linux environment to pull files; the next priority is a sector-level image so further repairs or scans don’t destroy recoverable metadata. This preserves evidence for later forensic work and lets recovery tools be run safely against a copy.

Create an image before any repair. Use a Linux live USB and a destination disk with >= source capacity. Example using GNU ddrescue (first pass without retries, second pass for bad sectors):

sudo ddrescue -f -n /dev/sdX /mnt/target/drive.img /mnt/target/drive.log

sudo ddrescue -d -r3 /dev/sdX /mnt/target/drive.img /mnt/target/drive.log

Verify the image (md5/sha1) and keep the logfile; ddrescue’s logfile lets interrupted runs resume.

Work against the image, not the original. Mount the image as a loop device and try TestDisk to recover partitions/boot sectors (Analyse -> Quick Search -> Deeper Search), or use PhotoRec to carve files if partition structures are lost. ntfsfix can fix a few NTFS issues but is no substitute for Windows chkdsk; run chkdsk only on the image copy. If the disk shows mechanical symptoms (clicking, many reallocated sectors), stop and consult a professional — continued attempts can cause further damage.

Follow-up diagnostics and prevention: capture SMART output (smartctl -a /dev/sdX), check Windows event logs for disk/driver errors, run memory tests, inspect cables and PSU, and consider a UPS. For the AVG oddities mentioned in the thread, submit suspect binaries to multi-engine scanners (VirusTotal) and AVG for analysis rather than trusting a single scanner result. Maintain regular backups; that is the single best defense against this class of failure.

Recommended Answers

All 3 Replies

Hi You all.
So, strange but true, My Beloved's system (which I put together less than a year ago) was running an Ewido scan, minding it's own biz, when suddenly, the BSOD appeared. No problem I thought, at most we'll do a repair on XP and she'll be up and running again. No no, instead, we find that the 250 Maxtor has suddenly lost it's NTFS format, and is read as RAW (sounds painful). Being brilliant as well as beautiful, (big score on points there) she borrows a Linux disk and is able to retrieve most of her files in that manner. Now, HOW DID THIS HAPPEN? The only abnormality prior to the incident was AVG showed positive for 14 viruses which according to Housecall weren't there. On further investigation there aren't any virus' known by the names AVG gave us. Apparently AVG was testing positive for these mystery viruses for a week prior but never sounded the warning bells. The viruses were in files such as Nero.exe, or surething.exe, etc. Which are all legitimate files. So, before this qualifies for a novel, have we slept through a major attack warning or missed some new outbreak report? I'm out of adjectives and anything even remotely humorous to add. I would appreciate any candlepower directed on this situation. If we are to ensure it not occurring again, gotta know what "it" is.
Thanks you all.
Harvester3

Hey folks, well it seems this post interested several of you all, but not enough to weigh in on the subject. I'll have to review the posting protocols, but probably should let this thread wind down as it's not going anywhere anyway. If there's something I'm doing wrong, or not doing right, please tell me. I want to be a contributor and a positive effect in this community, and welcome any advice to that end.
Thanks again,
BTW, still have no idea what happened to the hdd [:~)
harvester3

Our apologies- we're not ingoring you, we're just stretched a little thin helper-wise right now.

What exactly happened in your case I can't say, but having been through it a few times before, here's the general course of events as best I could determine once I'd resurrected the drives:

1. Something (could be anything) corrupts a piece of software, usually a driver. In my last two incidents the culprits appeared to be a) a power outage, and b) a driver update conflict. SOmetimes the STOP code in a Blue Screen error can help you more accurately determine the exact source of the corruption.

2. Driver goes BANG!, OS gets showered in shrapnel, and either the driver, the OS, or both do some serious fandango on disk and memory locations that they definitely shouldn't be writing to.

3. One of those areas turns out to be the Master Boot Record, the Master File Table, the Partition table, or some equally critical and low-level section of the drive.

Linux has some tools which will try to "guess" the partition type (FAT, NTFS, ext2, etc.) of a damaged disk and will therefore often be able to mount and access the disk (assuming the entire partition table isn't hosed) when Windows can't. Linux also obviously doesn't care about Windows boot-related files, so doing something like trashing the NTLDR file won't stop Linux from being able to recover the rest of the files on the drive.

As for the AVG "false positives", I've never heard of AVG exhibiting that behaviour before, and I use AVG on a lot of machines.

Much thanks for the reply. We may never know exactly what happened, but I'm sure the scenario you proposed is a good hypothesis. I'm curious about the false AVG reports as well. AVG has always been rock solid yet unobtrusive... Good program in any case.
Thanks again for the time and helping hand. Hope I can recip some day.
Harvester3

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.